Question

A triangle has angles (w² +84)°, w°, 3w°
Find the value of w

Answer 1

Below

Explanation:

The three internal angles f ANY triangle add up to 180 °

w^2 + 84 + w + 3w = 180

w^2 + 4w + 84 = 180

w^2 + 4w - 96 = 0 Use Quadratic Formula a = 1 b = 4 c = -96

to find the positive value of w = 8