Triangles ABC and XYZ are similar figures, because angles A, B, and C are congruent to angles X, Y, and Z, respectively. If side AC equals 3 cm, BC equals 9 cm, and XZ equals 15 cm, what is the length of side YZ?

45cm

Step-by-step explanation:

Since they are simliar, they are proportional.

SO, you can do AC/XZ = BC/YZ

You can also see that XZ is 5 times larger than AC

SO multiply BC by 5.

Option A is correct

Step-by-step explanation:

Given that:

70% of x.

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Option A:

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Simplify:

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Option B:

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Simplify:

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Option C:

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Simplify:

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Option D:

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Therefore, only option which is equivalent to 70% of x is, Option A i.e