Question

Which statement about g in quadrilateral WXYZ is correct?

A. g=360°−(45°+170°+80°)
B. g=45°
C. g=180°+80°
D. g cannot be determined because you do not know what type of quadrilateral WXYZ is.

Answer 1

We know that the sum of interior angles of a quadrilateral is 360 degrees.

Based on that,
g+170+45+80=360
Subtracting (170+45+80) from both sides gives
g=360-(170+45+80),
or
g=360-(45+170+80)