In circle O, AD and BE are diameters. The measure of arc AB is 55° and the measure of arc CD is 25°. What is the measure of EAC?

Question

Cynthia Schultz

Mathematics

3 September, 12:09

In circle O, AD and BE are diameters. The measure of arc AB is 55° and the measure of arc CD is 25°. What is the measure of EAC?

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Answers (1)

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Admiral · Answer 1

You have not specified where C is in relation to B, D, and E.

For C between D and E,

... EAC = (1/2) (55° - 25°) = 15°

For C between B and D,

... EAC = (1/2) (55° + 25°) = 40°