Program to find angles of a triangle
C Programming Language / Overview of C Language
6456Program:
/** * C program to find all angles of a triangle if two angles are given */ #include int main() { int a, b, c; /* Input two angles of the triangle */ printf("Enter two angles of triangle: "); scanf("%d%d", &a, &b); /* Compute third angle */ c = 180 - (a + b); /* Print value of the third angle */ printf("Third angle of the triangle = %d", c); return 0; }
Output:
Enter two angles of triangle: 60 30 Third angle of the triangle = 90
Explanation:
Required knowledge
Arithmetic operators, Data types, Basic input/output
Properties of triangle
Sum of angles of a triangle is 180°.
Let us apply basic math to derive formula for third angle. If two angles of a triangle are given, then third angle of triangle is given by -
Logic to find third angle of a triangle
Step by step descriptive logic to find third angle of a triangle -
- Input two angles of triangle from user. Store it in some variable say a and b.
- Compute third angle of triangle using formula
c = 180 - (a + b)
. - Print value of third angle i.e. print c.
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