Area of Circle (πr²) Dry Run in C

Area of Circle (πr²) is an interactive C dry run visualizer from the Input Output programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Area of Circle (πr²) Program Code

#include <stdio.h>
int main() {
    float r, area;
    printf("Enter radius: ");
    scanf("%f", &r);
    area = 3.14 * r * r;
    printf("Area of Circle = %.2f", area);
    return 0;
}

View the complete Input Output programs page.