If \(\angle{XYZ}\) in the figure above is a right angle, what is the value of x?

[BTGmoderatorLU]

Source: GMAT Paper Tests

If \(\angle{XYZ}\) in the figure above is a right angle, what is the value of x?

A. 155
B. 145
C. 135
D. 125
E. 110

The OA is B

[Brent@GMATPrepNow]

Source: GMAT Paper Tests

Untitled(2).png

If \(\angle{XYZ}\) in the figure above is a right angle, what is the value of x?

A. 155
B. 145
C. 135
D. 125
E. 110

The OA is B

Given: ∠XYZ = 90°
Add to diagram



90° - 55° = 35°
So, the missing angle is 35°


Finally, since angles on a line add to 180°, we can write: x° + 35° = 180°
Solve to get: x = 145°

Answer: B

Cheers,
Brent