Question

Question 4! Andrew cut a rectangular piece of wood along a straight line, as shown below. 110° Andrew calculated that x = 70°. Which of the following statements justifies Andrew's calculations? 1 Consecutive interior angles are supplementary. 2 Adjacent angles formed by perpendicular lines are complementary. 3 Vertical angles are congruent. 4 Alternate exterior angles are congruent.

Answer 1

Supplementary angles is equals to 180 degree. The angle 110 degree and x degree (70 degree )are supplementary angles .

180 - 110 = 70 degree(supplementary angle)

The answer is A as the both angles are consecutive interior angles which are supplementary