Question

What is the value of x, when a scalene triangle's measurements are x, 2x, and 54 ?

Answer 1

x = 42°

Explanation:

Total interior angles of a triangle = 180°.

Therefore; x + 2x + 54° = 180°

3x +54° = 180°

3x = 180° - 54°

3x = 126°

x = 126°÷3

x = 42°