Question

What is the measure of F∠ ?

Answer 1

Below

Explanation:

All of the internal angles of any triangle sum to 180

find 'x' then F = 5x - 7

8x -18 + 6x-4 + 5x-7 = 180 °

19x -29 = 180

x = 11°

F = 5x -7 = 5(11) - 7 = 48°