Find the length of side X in simplest radical form with a rational denominator.

asked Nov 6, 2021 210k views

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Answer:

x = (7 √(2) )/(2)

Explanation:

$\cos \: 45 \degree = (x)/(7) \\ \\ (1)/( √(2) ) = (x)/(7) \\ \\ x = (7)/( √(2) ) \\ \\ x = (7 √(2) )/(2)$

Ananay Mital answered Nov 11, 2021

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