There need not be any. There is no scale factor between a pentagon with a perimeter of 50 cm and a triangle with a perimeter of 75 cm. The shapes are totally different!
The scale factor is 2 : 3.
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the answer to this question is 1:4 10: ? =10x4/1 =40
divide the perimeter by 27 the multiply it by 3 and then u get the answer
You would look at the side lengths and the scale factor to find a pair of similar figures :)
A scale factor is a number which scales, or multiplies, some quantity. A scale factor of two would mean to multiply whatever it is by two.
Look for corresponding parts of the two figures. Their ratio is the scale factor. For example, if you have two similar triangles, one has a side of length 3, and the corresponding side on the other triangle is 5, then the scale factor is 5/3 going from the small triangle to the big, or 3/5 going from the big triangle to the small.