Read the problem statement. Formulate the algorithm using pseudocode and top-dow

Question

Read the problem statement. Formulate the algorithm using pseudocode and top-down, stepwise refinement. Write the C program. Test, debug and execute the C program. Write a program that reads in the radius of a circle and prints the circle's diameter, circumference and area. Use the constant value 3.14159torn. Perform each of these calculations inside the printf statement(s) and use the conversion specifier %f. [In chapter 2, we have discussed only integer constants and variables. In Chapter 3 we will discuss floating-point numbers, i.e., values that can have decimal points.]

Explanation / Answer

#include<stdio.h>

#define PI 3.14159

void main()

{

float radius, diameter, circumference, area;

printf("Enter Radius of a Circle : ");

scant("%f", &radius);

printf(" Diameter of the Circle is : %5f", (2*radius)); // diameter is 2*r

printf(" Circumference of the Circle is : %5f", ( 2*PI*radius)); // Circumference is 2*PI*r

printf( " Area of the Circle is : %5f", ( PI*radius*radius)); // Area is PI*r*r

}

Output:

Enter Radius of a Circle : 2.5

Diameter of the Circle is : 6.28318

Circumference of the Circle is : 15.70795

Area of the Circle is : 19.63493

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