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In the given figure, CD is the diameter ...

In the given figure, CD is the diameter of a circle with centre O and CD is perpendicular to chord AB. If AB `=` 12 cm and `CE = 3 cm` then radius of the circle is

Text Solution

Verified by Experts

The correct Answer is:
7.5 cm
Let OA `=` OC = r cm . Then, OE `= (r-3)` cm and AE `= (1)/(2) AB = 6` cm.
Use `OA^(2) = OE^(2) + AE ^(2)`.
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