Question

Two similar trapezoids have areas of 180 cm^2 and 45 cm^2. What is their ratio of similarity?

Answer 1

I've never heard of this ratio of similarity before, but I presume it's found by just dividing 180/45 = 4.

This can be thought of as a scaling factor. Like you're stretching out the smaller trapezoid but maintaining its proportions.

Answer 2

Well one of my choices is 4:1 is that the answer?

Answer 3

Yup that would be it.

It basically says that 180 is 4 times as large as 45 is.
45 * 4 = 180.

Answer 4

Thanks can you help me with another one?

Answer 5

@Driana_18, if you have another question, just close this one, then post your next question.