Posted by **Vanessa** on Saturday, March 17, 2012 at 5:30pm.

Right triangle ABC is similar to triangle XYZ. If the length of side AB is 30 inches, the length of side BC is 60 inches, and the length of side YZ is 10 inches, what is the length of side XY?

A.4

B.7

C.6

D.none of above

- Math -
**Polina**, Saturday, March 17, 2012 at 6:34pm
use pythagorean theorem!

a^2 + b^2 = c^2

- Math -
**Steve**, Sunday, March 18, 2012 at 2:40pm
actually, use similar triangles.

XY:AB = YZ:BC

XY:30 = 10:60

XY=5

so, (D)

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