Question

The ratio of the heights of two similar rectangular prisms is 3:4. What is the ratio of their lateral areas?
Answer

3:7

1:0.75

9:16

27:64

Answer 1

lateral surface = l*h:
the prisms are similar implies that h1/h2=l1/l2=3/4
and what we find that area1/area2=l1*h1/l2*h2=3*3/4*4 =9/16

Answer 2

thank-you!!