Find the diagonal $ d $ of a rectangle if side $a = 18$ and side $b = 25$.
Answer
$d = \sqrt{ 949 }$
Explanation
To find diagonal $ d $ use Pythagorean Theorem:
$$ a^2 + b^2 = d^2 $$After substituting $ a = 18 $ and $ b = 25 $ we have:
$$ 18^2 + 25^2 = d^2 $$ $$ 324 + 625 = d^2 $$ $$ d^2 = 949 $$ $$ d = \sqrt{ 949 } $$This page was created using
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