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OpenStudy (anonymous):
a = 20, b = 28, c = ?
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OpenStudy (anonymous):
a^2 + b^2 = c^2 20^2 + 28^2 = c^2 400 + 784 = c^2 1184 = c^2 sq rt 1184 = sq rt c^2 34.409 (rounded = 34.41) = c
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