212k views
1 vote
In circle O below, what is the measure of arc ED?

In circle O below, what is the measure of arc ED?-example-1

1 Answer

3 votes
Triangle FOD is an isosceles with base FD.
FD = 2 · 4 = 8
FD = CB
Arc CB = 56°
Arc ED = 1/2 Arc FD = 1/2 Arc CB
Arc ED = 56° : 2
Answer:
Arc ED = 28°

User Prasad Silva
by
7.6k points