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Question

AB is the diameter of a circle centered at O. C is a point on the circle such that angle BOC is 60^. If the diameter of the circle is 5 inches, the length of chord AC, expressed in inches, is:

Accepted Answer

FIGURE We see that A is half the measure of BOC, so A = 30^. That makes ABC a 30-60-90 triangle and sidelength AC equal to 532. 532