Question
Find the base area $ A_B $ of a cone if radius $r = 2\, \text{cm}$ and slant height $l = 7\, \text{cm}$.
Answer
$4\pi\, \text{cm}^2$
Explanation
To find base area $ AB $ use formula:
$$ AB = r^2 \cdot \pi $$After substituting $r = 2\, \text{cm}$ we have:
$$ AB = \left( 2\, \text{cm} \right)^{2} \cdot \pi $$ $$ AB = 4\, \text{cm}^2 \cdot \pi $$This page was created using
Cone Calculator