Question

Find m A
2x
C
(3x - 10)
D
E
B

Answer 1

∠ABC = 40

∠CBC = 50

Explanation:

∠ABC + ∠CBD = 90

2x + (3x - 10) = 90

2x + 3x - 10 = 90

5x = 100

x = 20

∠ABC = 2x = 2(20) = 40

∠CBC = 3x - 10 = 3(20) - 10 = 50