# C Program to Use Angles to check Triangle is valid or Not

In this tutorial you will learn about the C Program to Use Angles to check Triangle is valid or Not and its application with practical example.

## C Program to Use Angles to check Triangle is valid or Not

In this tutorial, we will learn to create a C program that will Use Angles to check Triangle is valid or Not in C programming.

## Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

• Operators in C Programming.
• Basic Input and Output function in C Programming.
• Basic C programming.
• Arithmetic Operations in C Programming.
• Conditional statements in C programming.

## What is a triangle?

In geometry, a triangle is a shape generally to be drawn by three lines. The triangle has three interior angles and the total of its interior angle is 180 degrees.

## Program description that will check the Triangle:-

In this tutorial, we will create a program, that will Use Angles to check Triangle is valid or Not. First, we will take three angles from the input by the user. Then we will add all three angles if the sum is equal to 180 then Triangle is valid if not equal to 180 then it’s Not a valid triangle. Then will print the output of the triangle.

## Output:-

In the above program, we have first initialized the required variable.

• ang1 = it will hold the value for the input first angle of the triangle.
• ang2 = it will hold the value for the input second angle of the triangle.
• ang3 = it will hold the value for the input third angle of the triangle.

Taking the Input of the three angles of the triangle.

Code to check the triangle is a valid triangle or not.

Printing the output for the triangle is valid or not.

In this tutorial we have learn about the C Program to Use Angles to check Triangle is valid or Not and its application with practical example. I hope you will like this tutorial.