Q:

C Program To Find Area And Circumference Of Circle

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ghaidaib
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2022-05-12
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Circumference :-Circumference of circle is the distance around the circle. Calculate The Circumference of Circle By Given Formula
Circumference = 2*π*r    
Here PI (π) is a Greek Letter and r is a Radius (1/2 Of Diameter )
PI (π) = 3.141592653589793 Approx. It Is A Constant Value for more about Circumference Click Here
Area   =π *r*r
For more about Area Of Circle Click Here 
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ghaidaib
2022-05-12
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#include<stdio.h>
int main()
{
   int rad;
   float PI = 3.14, area, ci;

   printf("\nEnter radius of circle: ");
   scanf("%d", &rad);

   area = PI * rad * rad;
   printf("\nArea of circle : %f ", area);

   ci = 2 * PI * rad;
   printf("\nCircumference : %f ", ci);

   return (0);
}

 

Output:

Enter radius of circle: 56

Area of circle : 9847.041016 

Circumference : 351.680023

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