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2 years ago

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

Mathematics

1 answer:

Serga [27]2 years ago

5 0

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°

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