Question

What is m ZSRW?

- 18
- 54
- 126
- 108

Answer 1

126

Explanation:

Angle SRW is supplementary to (2x + 18)º and (3x)º, that is, they add up to 180º.

Finding angles in function of X:

Since angles (2x + 18)º and (3x)º are opposite by vertex R, they have the same measure. So

`3x = 2x + 18`

`x = 18`

So

`3x = 3(18) = 54`

Angle SRW:

Supplementary with 54. So

54 + SRW = 180

SRW = 180 - 54 = 126

So 126 is the answer.