C Tutorial
Area of a Circle = π * (radius*radius)
This C program gets radius as user inputs and computes the area of a circle.
#include<stdio.h> void main() { int radius; float area=0; printf("\nFinds area of circle\n-------------------"); printf("\nEnter radius: "); scanf("%d", &radius); area = 3.14*(radius*radius); printf("Circle Area: %.2f", area); }Output:
$ cc area-of-circle.c $ ./a.out Finds area of circle ------------------- Enter radius: 8 Circle Area: 200.96
Area of Semi-circle = ( π * radius*radius)/2
This C program gets radius as user inputs and computes the area of semi-circle.
#include<stdio.h> void main() { int radius; float area=0; printf("\nFinds area of semi-circle\n-------------------"); printf("\nEnter radius: "); scanf("%d", &radius); area = (3.14*radius*radius)/2; printf("Semi-circle Area: %.2f", area); }Output:
$ cc area-of-semi-circle.c $ ./a.out Finds area of semi-circle ------------------- Enter radius: 8 Semi-circle Area: 100.48
C Tutorial
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