Question

Multiple choice questions: find the scale factor for solid A to solid B? a)1:2 b)1:3 c)1:4 d)2:3 e)2:5
Find the ratio of the surface areas for A to B? a)4:9 b)1:9 c)4:25 d)1:4 e)1:16
Find the ratio of the volumes for A to B? a)1:27 b)1:8 c)8:27 d)8:125 e)1:64

Answer 1

D for the first one

Answer 2

C for the second

Answer 3

the way you can do this is you take two sides that are the same... easiest one is the bottom right for this problem ... the ratio is 2:3 so then for volume the only difference would be you take that and cube it since volume is three dimensions so you would get 2^3 = 8 and 3^3 = 27 so 8:27

Answer 4

oh oops i missed the second one i gave you answers to one and three
the second one you would do the same way but instead of cubing it you just square it so 2^2 is 4 and 3^2 is 9
so it should be 4:9 which is choice A

Answer 5

so once again it would be D for the first A for the second and C for the third

Answer 6

okay that makes scene.. thank you