Question

Which pair of rectangles is similar?

Answer 1

http://static.k12.com/calms_media/media/1299500_1300000/1299518/1/f73ffef3e0d11161f02f317b3c390f915d0336bf/141084_C.jpg

Answer 2

http://static.k12.com/calms_media/media/1299500_1300000/1299519/1/9c6842082076529e8de1c8d4b6f6dda32ab9a427/141084_D.jpg

Answer 3

http://static.k12.com/calms_media/media/1299500_1300000/1299517/1/eff933155e5b2d04f33ed6023f887599d911ea44/141084_B.jpg

Answer 4

http://static.k12.com/calms_media/media/1299500_1300000/1299516/1/6f8b1cd825a70e80de0e0e2e94826be6a4bc2643/141084_A.jpg

Answer 5

hint: they'll look similar, but the corresponding sides will increase or decrease by the same factor
i.e. both sides will be multiplied by 2 or both side will be divided by 2

Answer 6

I don't get it..... So I have to multiply?

Answer 7

look at the rectangle on the left. Divide both values by 2. If the first value divided by 2 equals the value on the corresponding edge of the smaller rectangle, (for both sides) then you have a set of similar rectangles.
as an example. original rectangle with side 2 and 6 could have a similar rectangle with sides 1 and 3.
2/2=1 and 6/2=3. since the scale factor is /2, they are similar.

Answer 8

Which one is it? I will give you medal.