Question

A triangle has sides of length 11cm, 10 cm, and 9cm.

Calculate the largest angle in the triangle.

Answer 1

Answer: In right angled triangle

Length of square of biggest side it's equal to length sum of square of two other sides

(11)² = (9)² + (10)²

121 = 81 + 100

121 = 181

So it is not a right angled triangle

Explanation: