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britbrat4601 Group Title

PLZ HELP a. Find the radius. If your answer is not an integer, express it in radical form. b. Find FN. If your answer is not an integer, express it in radical form. c. Find EF. Express it as a decimal rounded to the nearest tenth.

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  1. britbrat4601 Group Title
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  2. lacypennelll Group Title
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    http://openstudy.com/study#/updates/50c66bb7e4b0a14e4367ecf2 try this! :D

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    a. Because OM is perp. to CM, and OD=OC = radius of circle, CM = DM = 22. Pythagoras in triangle OMC: OC² = 22² + 20² = 884. \[OC =r=\sqrt{884}=2\sqrt{221}\]

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    To find the other answers, use the same technique, in triangle ONE (you now know EO).

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