A cylinder has a radius of 2.8 inches and a height of 2.4 inches. Which cylinder is similar?

We cannot see the options for the answer (the cylinders aren't shown)

Similar shapes are defined as shapes in which the ratio of the dimensions or the area or volumes are equal o 1. in this case, given the radius and height of the cylinder, then the ratio that can be used is r2^2/r1^2 or h2/h1. the rule of congruence is used in this problem.