Question

alogarithm for area of circle​

Answer 1

Answer:

Input to the algorithm

Radius r of the circle

Expected output

Area of circle

Algorithm

Step 1: Start

Step 2: Read\input the radius r of the circle

Step 3: Area PI*r*r// calculation of the area

Step 4: Print area

Step 5: End

Answer 2

Hello !!

You did don't specify the language of programation for the algorithm. So, I make in C language.

In C language.

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#include <stdio.h>

#include <conio.h>

float main(void)

{

float r,A,pi;

printf("Put the radius:");

scanf("%f",&r);

printf("Put the value of pi(example:3.1415...):");

scanf("%f",&pi);

A = pi*(pow(r,2));

printf("The area is approx:%0.4f",A);

return 0;

}

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[See a example in attachment].

I hope I have collaborated !