Question
Find the area $ A $ of a circle if radius $r = 5.4\, \text{cm}$.
Answer
$29.16\pi\, \text{cm}^2$
Explanation
To find area $ A $ use formula:
$$ A = r^2 \cdot \pi $$After substituting $r = 5.4\, \text{cm}$ we have:
$$ A = \left( 5.4\, \text{cm} \right)^{2} \cdot \pi $$ $$ A = 29.16\, \text{cm}^2 \cdot \pi $$This page was created using
Circle Calculator