Question

which of the following formulas is used to find the volume of a cylinder

Answer 1

we know that

the formula to calculate the volume of a cylinder is equal to

$V=B\cdot h$

where B is the area of the circular base and h is the height

so

$B=\pi\cdot r^2$

substitute

$V=\pi\cdot r^2\cdot h$

where r is the radius of the circular base