Question

The triangles are similar. If WZ = 15, ZY = 12, and XY = 11, find WV. Round to the nearest tenth.

Answer 1

13.8

Explanation:

because they're similar, we know that

zy ÷ wz has the same ratio as xy ÷ wv

12 / 15 = 11 / wv

cross multiply

12wv = 165

÷ 12 ÷12

wv = 13.75

13.75 rounded to nearest tenth is 13.8