Question

The figures shown are similar.

What is the scale factor? A. 1 1/3 B. 3/4 C. 2/3 D. 1/1/4

Answer 1

http://static.k12.com/calms_media/media/1299500_1300000/1299530/1/fb53d1a67925fab8e147c3f2df245e398ba07b0a/141116.jpg

Answer 2

@beccaboo333

Answer 3

@iambatman

Answer 4

@Hero

Answer 5

I don't see the answer among the choices

Answer 6

The scale factor between two regular geometric objects is the ratio of their respective side lengths.
In this case, the side length of the first pentagon is 9. The side length of the second pentagon is 12.

Therefore the scale factor is \(\dfrac{\text{side length of smaller pentagon}}{\text{side length of larger pentagon}}\)

Answer 7

Also, remember to reduce afterwards

Answer 8

ok thanks :)

Answer 9

yw

Answer 10

@Hero, how? the scale should be calculate base on the areas, not just the side. And the area of the small one is about 139. the big one is about 247. so that the scale is not one of the choices.

Answer 11

its A

Answer 12

Hand off!!! :)

Answer 13

http://en.wikipedia.org/wiki/Scale_factor

Answer 14

The ratio of any two corresponding lengths in two similar geometric figures is called as Scale Factor.

Answer 15

The key word is "length"

Answer 16

Ok, got you. Thanks for the link :)

Answer 17

@itsbribro, how did you come up with A as an answer choice?

Answer 18

That's not what I got as the correct choice.

Answer 19

i on accedent put that on here