Find the perimeter $ P $ of a rectangle if side $a = 156$ and side $b = 42$.
Answer
$P = 396$
Explanation
To find perimeter $ P $ use formula:
$$ P = 2 a + 2 b $$After substituting $ a = 156 $ and $ b = 42 $ we have:
$$ P = 2 \cdot 156 + 2 \cdot 42 $$ $$ P = 312 + 84 $$ $$ P = 396 $$This page was created using
Rectangle Calculator