C program to calculate the area and circumference of a circle
Algorithm
Step 1: Start
Step 2:define PI 3.14
Step 3: Declare variables R, A,and C
Step 4: Read the value of Radius R
Step 5: Calculate the area of a circle
A = PI * R * R
Step 6: Print the area of a circle
Step 7: Calculate the circumference of a circle
C =2 * PI * R
Step 8: Print the circumference of a circle
Step 9: End
kw.c
#include<stdio.h>
#define PI 3.14
intmain(){floatR,A,C;printf("———————————————————————————————————————————");printf("\nProgram to calculate the area and circumference of a circle");printf("\n———————————————————————————————————————————");printf("\nEnter the radius of a circle ");scanf("%f",&R);A=PI*R*R;printf("\nThe area of a circle is %f ",A);C=2*PI*R;printf("\n\nThe circumference of a circle is %f ",C);printf("\n———————————————————————————————————————————\n");return0;}
Output
kodingwindow@kw:~$ gcc kw.c kodingwindow@kw:~$ ./a.out
———————————————————————————————————————————
Program to calculate the area and circumference of a circle
———————————————————————————————————————————
Enter the radius of a circle 10
The area of a circle is 314.000000
The circumference of a circle is 62.799999
———————————————————————————————————————————
kodingwindow@kw:~$
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