Question

Based on these triangles, which statement is true?

A. w = 50°, because 180 - (60 + 70) = 50 and 180 - 130 = 50

B. z = 130°, because 180 - ( 60 + 70 ) = 50 and 180 - 50 = 130

C. z = 60°, because 180 - ( 60 + 70 ) = 60 and 180-60= 120

D. w = 130°, because 180 - ( 60 + 70 ) = 50 and 180 - 50 = 130

Answer 1

D

Explanation:

only one triangle has " w " to find out while two angles out of three angles are known to be 60° and 70° . 180 - (70+60) gives third angle "z". w° = 180 - z°, which gives w° = 130°