Question

-25 Points-
Find the measure of angle CHF.

Answer 1

∠CHF = 115°

Explanation:

∠CHF is a chord - chord angle formed by the chords AC and FB

The measure of the angle is

∠CHF = 0.5( m arc CF + m arc AB, that is

∠CHF = 0.5( 100 + 60 + 30 + 40) = 0.5(230) = 115°