Question

PLEASE HELP I NEED TO PASS

What is the perimeter of the triangle? (Round to the nearest tenth)

Answer 1

P = 43.3

Explanation:

sin 38° = EF/18

EF = 18·sin 38°

EF = 11.1

to find DF:

sin 90°/18 = sin 52°/DF

1/18 = .79/DF

DF = 14.2