Smart Productions: Challenge Lesson 8 Source Code

Monday, May 16, 2011

Challenge Lesson 8 Source Code


List of videos Challenge 1

First Challenge

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Solution 1

#include <iostream>
using namespace std;

int main()
{
	double base = 0;
	double height = 0;
	double Rectangle_Area = 0;
	double Triangle_Area = 0;

	cout << "Type in a length of a rectangle: ";
	cin >> base;
	cout << "Type in a height of a rectangle: ";
	cin >> height;
	Rectangle_Area = base*height;

	cout << "Type in a length of a triangle: ";
	cin >> base;
	cout << "Type in a height of a triangle: ";
	cin >> height;
	Triangle_Area = base*height/2;

	cout << endl << "Area of Rectangle: " << Rectangle_Area << endl
	<< "Area of Triangle: " << Triangle_Area << endl <<
	"Sum of area: " << Rectangle_Area + Triangle_Area << endl;
	system("pause");
}



Solution 2

#include <iostream>
using namespace std;

int main()
{
	double Rectbase = 0;
	double Rectheight = 0;
	double Tribase = 0;
	double Triheight = 0;

	cout << "Type in a length of a rectangle: ";
	cin >> Rectbase;
	cout << "Type in a height of a rectangle: ";
	cin >> Rectheight;

	cout << "Type in a length of a triangle: ";
	cin >> Tribase;
	cout << "Type in a height of a triangle: ";
	cin >> Triheight;

	cout << endl;
	cout << "Area of Rectangle: " << Rectbase*Rectheight 	<< endl;
	cout << "Area of Triangle: " << Tribase*Triheight/2 	<< endl;
	cout << "Sum of area: " << Rectbase*Rectheight+Tribase*Triheight/2
	<< endl;
	system("pause");
}

24 comments:

EuxionJuly 12, 2011 at 1:57 PM
Ahh, it seems I took alot of unnecessary steps. I wonder if this pastes right--

#include
using namespace std;

int main()
{

double r1 = 1;
double r2 = 1;
double t1 = 1;
double t2 = 1;

cout << "Type in a length of a rectangle: ";
cin >> r1;
cout << "Type in the height of a rectangle: ";
cin >> r2;
cout << "Type in a length of a triangle: ";
cin >> t1;
cout << "Type in a height of a triangle: ";
cin >> t2;

double ar = r1 * r2;
double at = (t1 * t2) / 2;

cout << endl << "Area of Rectangle: " << r1 * r2 << endl
<< "Area of Triangle: " << (t1 * t2) / 2 << endl
<< "Sum of Areas: " << ar + at << endl;

system("pause");
return 0;
}
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Replies
AnonymousSeptember 17, 2011 at 6:43 AM
It works, but should've used double.

#include
using namespace std;

int main()
{
int a,b,c,d;
cout << "Enter the length of the rectangle: " ;
cin >> a;
cout << endl;
cout << "Enter the width of the rectangle: " ;
cin >> b;
cout << endl;
cout << "Enter the length of the triangle: " ;
cin >> c;
cout << endl;
cout << "Enter the width of the triangle: " ;
cin >> d;
cout << endl << endl;

cout << "The area of the rectangle is: " << a*b << endl;
cout << "The area of the triangle is: " << (c*d)/2 << endl;
cout << "The total area is: " << (a*b)+((c*2)/2) << endl ;

system("pause") ;
return 0;
}
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AnonymousOctober 29, 2011 at 1:48 AM
My code works, but whenever I try to enter a non-integer value, it will output everything else at once. Please help me. Thank you so much for your lessons and your help.

#include
using namespace std;

int main()
{
int rectangle_length = 0;
int rectangle_height = 0;
int triangle_length = 0;
int triangle_height = 0;

cout << "Type in a length of a rectangle: ";

cin >> rectangle_length;

cout << "Type in a height of a rectangle: ";

cin >> rectangle_height;

cout << "Type in a length of a triangle: ";

cin >> triangle_length;

cout << "Type in a height of a triangle: ";

cin >> triangle_height;

cout << "Area of Rectangle: " << rectangle_length * rectangle_height << endl;
cout << "Area of Triangle: " << 0.5 * triangle_length * triangle_height << endl;
cout << "Sum of Area: " << rectangle_length * rectangle_height + 0.5 * triangle_length * triangle_height << endl;

system ("pause");
return 0;
}
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AnonymousNovember 28, 2011 at 11:17 AM
Think I got so far, a little stressful at first lol.

#include
using namespace std;

int main()
{
int LT =0;
int HT =0;
int LR =0;
int HR =0;

cout << "Type in a length of a Triangle: ";
cin >> LT;
cout << "Type in a hight of a Triangle: ";
cin >> HT;
LT,HT = LT*HT/2;

cout << "Type a length of a Rectangle: ";
cin >> LR;
cout << "Type in a hight of a Rectangle: ";
cin >> HR;
LR,HR = LR*HR;
cout << endl;

cout << "The area of a Triangle is: "<< LT*HT/2 <<endl;
cout << "The area of a Rectangle is: "<< LR*HR <<endl;
cout << "The Sum of the area is: "<< LT*HT/2 + LR*HR <<endl;

system ("pause");
return 0;
}
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AnonymousNovember 28, 2011 at 11:31 AM
Fixed my HUGE mess up lol from my above post. Added a few things and I went through and fixed them.

#include
using namespace std;

int main()
{
double LT =0;
double HT =0;
double LR =0;
double HR =0;

cout << "Type in a length of a Triangle: ";
cin >> LT;
cout << "Type in a hight of a Triangle: ";
cin >> HT;
LT*HT/2;

cout << "Type a length of a Rectangle: ";
cin >> LR;
cout << "Type in a hight of a Rectangle: ";
cin >> HR;
LR*HR;
cout << endl;

cout << "The area of a Triangle is: "<< LT*HT/2 <<endl;
cout << "The area of a Rectangle is: "<< (LR*HR) <<endl;
cout << "The Sum of the area is: "<< LT*HT/2 + LR*HR <<endl;

system ("pause");
return 0;
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AnonymousMarch 3, 2012 at 7:46 AM
#include
using namespace std;
int main()
{ double a,b,c,d;
cout <<"Please insert the value of the base of your rectangle: ";
cin >> a;
cout <<"Please insert the value of the height of your rectangle: ";
cin >> b;
cout <<"Please insert the value of the base of your triangle: ";
cin >> c;
cout <<"Please insert the value of the height of your triangle: ";
cin >> d;
cout <<"The area of your rectangle is: " << a*b <a*b)
cout<<"Your triangle area is bigger than the area of your rectangle because "< " << a*b<<endl;
if(c*d/2==a*b)
cout<<"Both of your areas are the same size because "<<c*d/2 << " = " << a*b<<endl;
system("pause");
return 0;

Ignore the 'if' staff.
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AnonymousMarch 3, 2012 at 7:48 AM
#include
using namespace std;
int main()
{ double a,b,c,d;
cout <<"Please insert the value of the base of your rectangle: ";
cin >> a;
cout <<"Please insert the value of the height of your rectangle: ";
cin >> b;
cout <<"Please insert the value of the base of your triangle: ";
cin >> c;
cout <<"Please insert the value of the height of your triangle: ";
cin >> d;
cout <<"The area of your rectangle is: " << a*b <a*b)
cout<<"Your triangle area is bigger than the area of your rectangle because "< " << a*b<<endl;
if(c*d/2==a*b)
cout<<"Both of your areas are the same size because "<<c*d/2 << " = " << a*b<<endl;
system("pause");
return 0;
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AnonymousAugust 23, 2012 at 5:03 AM
I put the area results for the rectangle, triangle, and total area into variables, in case I needed to use them elsewhere someday. True, it's a simple program now, but what if it were to develop further down the line?
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marian.ghetuOctober 6, 2012 at 10:14 AM
This comment has been removed by the author.
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marian.ghetuOctober 6, 2012 at 10:16 AM
This comment has been removed by the author.
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marian.ghetuOctober 6, 2012 at 10:17 AM
#include
using namespace std;

int main()
{
float baset,heightt,lengthr,heightr;
cout<<"Type in the base length of the triangle in cm: ";
cin>>baset;
cout<<"Type in the height of the triangle in cm: ";
cin>>heightt;
cout<<"Type in the length of the rectangle in cm: ";
cin>>lengthr;
cout<<"Type in the height of the rectangle in cm: ";
cin>>heightr;
cout<<endl<<endl<<endl;
cout<<"Area of triangle is "<<baset*heightt/2<<" square cm."<<endl;
cout<<"Area of rectangle is "<<lengthr*heightr<<" square cm."<<endl;
cout<<"Sum of area is "<<baset*heightt/2+lengthr*heightr<<" square cm."<<endl<<endl;
system("pause");
return 0;
}
This is what I came up with.
I measure in cm , I`m from europe.
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UnknownNovember 27, 2012 at 8:04 AM
This is what i ended up with..
I think my c++ logic is alright?
Notice I'm experienced with vb =P.

#include
using namespace std;

int main()
{
float length_rectangle = 0;
cout << "Type in a length of a rectangle: ";
cin >> length_rectangle;
float height_rectangle = 0;
cout << "Type in a height of a rectangle: ";
cin >> height_rectangle;

float length_triangle = 0;
cout << "Type in a length of a triangle: ";
cin >> length_triangle;
float height_triangle = 0;
cout << "Type in a height of a triangle: ";
cin >> height_triangle;

cout << endl;

float total_rectangle = length_rectangle * height_rectangle;
cout << "Area of Rectangle: " << total_rectangle << endl;

float total_triangle = length_triangle * height_triangle / 2;
cout << "Area of Triangle: " << total_triangle << endl;

float total_area = total_rectangle + total_triangle;
cout << "Sum of area: " << total_area << endl;

system("pause");
return 0;
}
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AnonymousDecember 6, 2012 at 11:45 PM
#include
using namespace std;

int main()
{
int R1,R2,T1,T2;
cout << "Type in a lenght of a rectangle: ";
cin >> R1;
cout << "Type in a hight of a rectangle: ";
cin >> R2;
cout << "Type in a lenght of a triangle: ";
cin >> T1;
cout << "Type in a hight of a triangle: ";
cin >> T2;

int R3 = R1*R2, T3 = T1*T2/2, RT = R3+T3;

cout << "Area of Rectangle: " << R3 << endl;
cout << "Area of Triangle: " << T3 << endl;
cout << "Sum of area: " << RT << endl;
system("pause");
return 0;
}
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AnonymousDecember 7, 2012 at 12:03 AM
I realized my mistake using int instead of double. int couldn't handle 2.178.

You are indeed a great teather, thank you sir for the time and effort you made in this.

#include
using namespace std;

int main()
{
double R1=0,R2=0,T1=0,T2=0;
cout << "Type in a lenght of a rectangle: ";
cin >> R1;
cout << "Type in a hight of a rectangle: ";
cin >> R2;
cout << "Type in a lenght of a triangle: ";
cin >> T1;
cout << "Type in a hight of a triangle: ";
cin >> T2;

double R3 = R1*R2, T3 = T1*T2/2, RT = R3+T3;

cout << "Area of Rectangle: " << R3 << endl;
cout << "Area of Triangle: " << T3 << endl;
cout << "Sum of area: " << RT << endl;
system("pause");
return 0;
}
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Replies
AnonymousMarch 3, 2013 at 5:51 PM
#include
using namespace std;

int main()
{
double x=0;
double y=0;
double a=0;
double b=0;

cout << "Enter the length of a rectangle: ";
cin >> x;
cout << endl;
cout << "Enter the height of a rectangle: ";
cin >> y;
cout << endl;
cout << "Enter the length of a triangle: ";
cin >> a;
cout << endl;
cout << "Enter the height of a triangle: ";
cin >> b;
cout << endl;
cout << endl;
cout << "Area of rectangle: " << x * y;
cout << endl;
cout << "Area of triangle: " << a * b * 0.5;
cout << endl;
cout << "Sum of area: " << x * y + a * b * 0.5;
cout << endl;
cout << endl;

system("pause");
return 0;
}
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AnonymousApril 8, 2013 at 2:41 PM
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AnonymousMay 7, 2013 at 4:28 AM

this is where i got to not sure if its right or wrong, im not the best at maths aswell so lol

#include
using namespace std;

int main()
{
float x,s,q,z;

cout << "Enter the hight of the triangle ";
cin >> x;
cout << "Enter the length of the triangle ";
cin >> q;
cout << "Enter the hight of the rectangle ";
cin >> s;
cout << "Enter the length of the rectangle ";
cin >> z;
cout << endl;
cout << "The area of the triangle is " << q * x << endl;
cout << "The area of the rectangle is " << s * z << endl;
cout << "The total of the sum is" << q * x + s * x << endl;

system ("pause");
return 0;
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CiobanuDecember 29, 2013 at 6:29 AM
#include
using namespace std;

int main()
{
double lp;
double hp;
double lt;
double ht;
double ariaP;
double ariaT;

cout << "Introduceti lungimea laturii unui patrulater: ";
cin >> lp;
cout << "Introduceti inaltimea laturii unui patrulater: ";
cin >> hp;

cout << "Introduceti lungimea laturii unui triunghi: ";
cin >> lt;
cout << "Introduceti inaltimea laturii unui triunghi: ";
cin >> ht;
cout << endl;
ariaP = lp * hp;
ariaT = (lt * ht)/2;

cout << "Aria unui patrulater este: " << ariaP << endl;
cout << "Arian unui triunghi este: " << ariaT <<endl;
cout << "Suma ariilor este: " << ariaP + ariaT << endl;
system("pause");
return 0;
}
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UnknownFebruary 22, 2014 at 9:37 PM
#include
using namespace std;

int main()
{
int length = 1;
int height = 1;
int base = 1;
int theight = 1;
cout << "Type in the length of a rectangle ";
cin >> length;
cout << "Type in the height of a rectangle ";
cin >> height;
cout << "The length of a rectangle is " << length << endl;
cout << "The height of a rectangle is " << height << endl;
cout << "The area of a rectangle is " << length*height << endl;
cout << " Type in the base of a triangle ";
cin >> base;
cout << " Type in the height of a triangle ";
cin >> theight;
cout << " The base of a triangle is " << base << endl;
cout << " The height of a triangle is " << theight << endl;
cout << " The area of a triangle is " << base*theight/2 << endl;
system ("pause");
return 0;
Just trying to learn programming in my spare time as a web development student. Am I crazy?
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AnonymousSeptember 24, 2014 at 7:51 AM
#include
using namespace std;
int main()
{
double a ,b,c,d,x,y,z;
cout<<"Type in a length of a rectangle:";
cin>>a;
cout<<"Type in a heigth of a rectangle:";
cin>>b;
cout<<"Type in a length of a triangle:";
cin>>c;
cout<<"Type in a heigth of a triangle:";
cin>>d;
cout<<endl;
cout<<endl;

x =a * b;
y =c * d / 2;
z =x + y;
cout<<"Area of Rectangle: "<<x<<endl;
cout<<"Area of Triangle: "<<y<<endl;
cout<<"Sum of Areas: "<<z<<endl;
system("pause");
return 0;
}
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AnonymousApril 24, 2017 at 8:52 AM
I think I took too much steps..
#include
using namespace std;
int main()
{
double Rx,Ry,Tx,Ty;
cout << "Type in a length of a rectangle: ";
cin >> Rx;
cout << "Type in a hight of a rectangle: ";
cin >> Ry;
double Ra = Rx*Ry;
cout << "Type in a length of a triangle: ";
cin >> Tx;
cout << "type in a hight pf a triangle: ";
cin >> Ty;
double Ta = 0.5*(Tx*Ty);
cout << endl << "Area of the rectangle: " << Ra
<< endl << "Area of the Triangle: " << Ta << endl;
double S = Ra + Ta;
cout << "The sum of the area: " << S << endl;
system("pause");
}
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