Question

Given the figure below, find the values of x and z.
20
70°
(6x + 20).
K

Answer 1

z = 70°

x = 15

Explanation:

70° and z are opposite from each other, so they are equal.

70° and (6x+20°) are adjacent, so they equal 180°.

70° + (6x+20°) = 180°

70° + 20° + 6x = 180°

90° + 6x = 180°

-90° -90°

6x = 90°

Divide each side by 6

x = 15