Question

Find the values of x in quadrilateral PQRS (Angle P is 80 degrees, angle S is 70 degrees, angle R is 2x degrees, and angle Q is x degrees.)

Answer 1

Explanation:

80+70+2×+×=180

=150+2×+×=180

=150+3×=×180

180-150=3×

30=3×

/3=/3

×=10