Question

In the figure below, points V, W, and Z lie on the same line. What is the value of z?

Select one:
A. 120°
B. 125°
C. 130°
D. 135°
E. 140°

Answer 1

b. 125 degrees

Explanation:

Quadrilaterals have a total of 360 degrees

105 + 130 + 70 + w = 360 <-- plug in numbers

305 + w = 360 <-- subtract 205 from both sides

w = 55 <-- angle measure of w

Straight lines have a angle of 180 degrees

180 - 55 = 125

z = 125

Answer 2

sum of angles in a quadrilateral = 360

to find out the unknown angle in the quadrilateral,
360-105-130-70 = 55

as angles on a straight line = 180,
180-55=125

ans : 125 ( B )