Question

write a JAVA program to accept three angles of a triangle and check whether the triangle is possible or not .If possible then display weather in acute angle triangle ,right angle triangle or obtuse angle triangle
(using Stream Classes)

Answer 1

Given three sides, check whether triangle is valid or not.

Examples:

Input :  a = 7, b = 10, c = 5  

Output : Valid

Input : a = 1 b = 10 c = 12  

Output : Invalid

Recommended: Please try your approach on {IDE} first, before moving on to the solution.

Approach: A triangle is valid if sum of its two sides is greater than the third side. If three sides are a, b and c, then three conditions should be met.

1.a + b > c  

2.a + c > b  

3.b + c > a  

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// C++ program to check if three  

// sides form a triangle or not  

#include<bits/stdc++.h>  

using namespace std;  

 

// function to check if three sider  

// form a triangle or not  

bool checkValidity(int a, int b, int c)  

{  

   // check condition  

   if (a + b <= c || a + c <= b || b + c <= a)  

       return false;  

   else

       return true;  

}  

 

// Driver function  

int main()  

{  

   int a = 7, b = 10, c = 5;  

     

   if (checkValidity(a, b, c))  

       cout << "Valid";  

   else

       cout << "Invalid";      

}  

Answer 2

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