Find the slant height $ l $ of a cone if radius $r = 22.2$ and height $h = 19.8$.
Answer
$l = 29.7469$
Explanation
To find side $ l $ use Pythagorean Theorem:
$$ r^2 + h^2 = l^2 $$After substituting $ r = 22.2 $ and $ h = 19.8 $ we have:
$$ 22.2^2 + 19.8^2 = l^2 $$ $$ 492.84 + 392.04 = l^2 $$ $$ l^2 = 884.88 $$ $$ l = \sqrt{ 884.88 } $$$$ l = 29.7469 $$This page was created using
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