﻿ C++ Exercises: Find the third angle of a triangle - w3resource

# C++ Exercises: Find the third angle of a triangle

## C++ Basic: Exercise-22 with Solution

Write a C++ program to find the third angle of a triangle.

Pictorial Presentation:

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

int main()
{
float ang1, ang2, ang3;
cout << "\n\n Find the third angle of a triangle :\n";
cout << "-----------------------------------------\n";
cout<<" Input the 1st angle of the triangle : ";
cin>>ang1;
cout<<" Input the 2nd angle of the triangle : ";
cin>>ang2;
ang3=180-(ang1+ang2);
cout << " The 3rd of the triangle is : " << ang3 << endl;
cout << endl;
return 0;
}

Sample Output:

Find the third angle of a triangle :
-----------------------------------------
Input the 1st angle of the triangle : 30
Input the 2nd angle of the triangle : 60
The 3rd of the triangle is : 90

Flowchart:

C++ Code Editor:

What is the difficulty level of this exercise?

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## C++ Programming: Tips of the Day

Why is there no std::stou?

The most pat answer would be that the C library has no corresponding "strtou", and the C++11 string functions are all just thinly veiled wrappers around the C library functions: The std::sto* functions mirror strto*, and the std::to_string functions use sprintf.

Ref: https://bit.ly/3wtz2qA

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