# Geometry

Find the length of the altitude of an isosceles triangle if one side has a length of 20 ft and a base of 14 ft?

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1. what is sqrt (20^2-7^2)

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👨‍🏫
bobpursley
2. (20^2-7^2) = 351
sqrt of 351 = 18.7

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3. 18.3

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