Given: m∠XPZ = 40°; m∠XPY = 10°

If ∠XPW and ∠XPY are supplementary angles, then what is the measure of ∠XPW?
A.
170°
B.
80°
C.
140°
D.
130°

170

Step-by-step explanation:

Supplementary angles are angles that add up to 180°.

Because ∠XPY = 10°, ∠XPW must be 170°.

the answer is b

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)