# Given: Circle O, diameter, marked perpendicular, Chord BC= 10, find x?

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- KrishnamurthyLv 71 year ago
OA^2 + OC^2 = x^2 (or AC^2)

AC = BC

Since BC = 10, x = 10

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- PuzzlingLv 71 year ago
The long chord is bisected into BC and AC. So they have the same length. You said BC = 10, so AC would be the same length.

Answer:

x = 10 units

P.S. If you meant that chord *AB* was 10, then x would be 5.

- jenny1 year agoReport
thank you

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