Question

Please answer this question by showing all the steps thank you

Answer 1

x = 20°

Explanation:

m∠CBA = 360 - 90 - 160 - 30 = 80

It's an isosceles Δ, therefore the base angles are congruent.

m∠CBA = m∠ACB = 80

Sum of interior angles of a Δ = 180

x = 180 - 80 - 80 = 20