What will be the area of a circle whose circumference is \(3 \pi\)?

Explanation

\(C=2 \pi r=3 \pi\) gives \(r=\frac{3}{2}\) and \(A= \pi r^{2} = \frac {9 \pi}{4}\)

Which of the following expressions is a simplified form of \(\left(-2 x^{2}\right)^{4}\)?

What is the area of a circle whose circumference is \(6 \pi\)?

If \(\sqrt{a b} = 4\), then what is the value of \(a^{2} b^{2}\)?

Which of the following is the GCF of ab, \(a^{3} b\) and \(a b^{3}\) ?