C program to find angles of triangle if two angles are given

Write a C Program to input two angles of a triangle from user and find third angle of the triangle. How to find all angles of a triangle if two angles are given by user using C programming. C program to calculate the third angle of a triangle if two angles are given.

Input first angle: 60
Input second angle: 80
Output third angle: 40

Required knowledge

Fundamentals of C, Data types, Talking user input in C, Properties of triangle

We know that sum of all angles of a triangle is 180° i.e. a + b + c = 180° (Where a,b,c are angles of triangles).


 * C program to find all angles of a triangle if two angles are given

#include <stdio.h>

int main()
    int a, b, c; //a, b, c are three angles of a triangle

    // Read two angles of the triangle from user
    printf("Enter two angles of triangle: ");
    scanf("%d %d", &a, &b);

    // Calculates the third angle
    c = 180 - (a + b);

    printf("Third angle of the triangle = %d", c);

    return 0;

Enter two angles of triangle : 60
Third angle of the triangle = 90

Happy coding ;)

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1 comment:

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