Question

what is the volume of a cylinder with a radius of 2 and a height of 3?
a. 56.52
b. 18.84
c. 12.56
d. 37.68

Explanation:

Step1: Recall volume formula

$V = \pi r^{2}h$

Step2: Substitute values

$r = 2$, $h=3$, so $V=\pi\times2^{2}\times3$

Step3: Calculate

$V=\pi\times4\times3 = 12\pi$. Taking $\pi\approx3.14$, we get $V\approx12\times3.14 = 37.68$

Answer:

D. 37.68