Question

The measure of angle Y is 45°, and the measure of angle Z is 70°.

Z
W
Y
What is the measure of angle W?
25°
65°
1150
120°

Answer 1

choice 3) W = 115 degrees

Explanation:

all triangle interior angles add up to 180 degrees

180 = 45 + 70 + X

X = 65 degrees

Angle W is supplemental to angle X (angle W and angle X add up to 180 degrees.)

W = 180 - 65 = 115 degrees

Answer 2

115 degrees

Explanation:

We know that angle y is 45 degrees and angle z is 70 degrees so to find x, you do 180-45-70 to get 65 degrees.

Because W plus X has to equal 180 degrees, 180-65=115, so the answer is 115 degrees