Find the side $ a $ of an equilateral triangle if perimeter $P = 60$.
Answer
$a = 20$
Explanation
To find side $ a $ use formula:
$$ P = 3 \cdot a $$After substituting $ P = 60 $ we have:
$$ 60 = 3 \cdot a $$ $$ a = \dfrac{ 60 }{ 3 } $$ $$ a = 20 $$This page was created using
Equilateral Triangle Calculator