Kim G.

asked • 02/15/18# scale factor

Im confused on scale factor. If I have a scale factor of 3 between 2 triangles A being the larger and B being the smaller. Then if they ask for scale from A to B it is 1/3. But, if I were to use the colon notation wouldn't that be 3:1 comparing the a side length of A to B? Or, am I not understanding the colon notation?

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## 1 Expert Answer

Andrew M. answered • 02/15/18

Tutor

New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors

With a ratio of A to B of 3:1

In any given sample of A and B, whatever they are, with a ratio of 3:1

there is 3 times as much of A as there is of B

Thus A = 3B

and B = (1/3)A

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Edward A.

02/15/18