Q:

Calculate the area and perimeter of a circle using c++

KasimKamal
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2022-06-27
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Write a program that calculates the area and perimeter of a circle

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KasimKamal
2022-06-27
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#include <iostream>
using namespace std;
int main(){
float rad;
const float pi=3.14159;
cout<<"enter the radius of the circle:";
cin>>rad;
float area=pi*rad*rad;
float per=2*pi*rad;
cout<<"area is:"<<area<<" ";
cout<<"perimeter is:"<<per;
}

 

Output:

enter the radius of the circle:15
area is:706.858 perimeter is:94.2477

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