Find the incircle radius $ r $ of an equilateral triangle if altitude $h = 13$.
Answer
$r = \frac{ 13 }{ 3 }$
Explanation
To find incircle radius $ r $ use formula:
$$ r = \dfrac{ h }{ 3 } $$After substituting $ h = 13 $ we have:
$$ r = \dfrac{ 13 }{ 3 } $$ $$ r = \frac{ 13 }{ 3 } $$This page was created using
Equilateral Triangle Calculator