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diameter 'cd' and center 'o' is …

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diameter 'cd' and center 'o' is perpendicular to chord AB . If AB=12cm and CE=3 cm, calculate the radius of the circle.
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Devyani Sapkale 4 years, 2 months ago

Given : CE = 3cm ; AE = 6 cm (=12AB) Let Radius of circle be r so, OA = rand OE = (r −3) Apply pythagoras theorem in ∆ OEA,OA2 = (OE)2  + (AE)2r2 = (r−3)2+62r2=r2 + 9 − 6r + 36−6r = −45r = 456/ = 7.5 cm
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