Find the area $ A $ of a circle if radius $r = \frac{ 1 }{ 2 }$.
Answer
$A = \frac{ 1 }{ 4 }\pi$
Explanation
To find area $ A $ use formula:
$$ A = r^2 \cdot \pi $$After substituting $ r = \frac{ 1 }{ 2 } $ we have:
$$ A = \left(\frac{ 1 }{ 2 }\right)^2 \cdot \pi $$ $$ A = \frac{ 1 }{ 4 } \cdot \pi $$This page was created using
Circle Calculator