Question

What is the measure of

Answer 1

Explanation:

The three internal angles of the triangle are

55 3x=2 and 180 - (13x-3) and they sum to 180

55 + 3x+2 + (180 -13x+3) = 180 solve for x

-10x + 240 = 180

x = 6

Then FAB = 13x -3 = 13(6) - 3 = 75 degrees