Question

1. triangleABC is similar to triangleXYZ in which the length of YZ = 12 units and the area of triangleABC and triangleXYZ are 45 square
units and 80 square units respectively. Find the length of BC.​

Answer 1

Answer:

ANSWER

First find the scale factor:

Since BC = 10 and YZ = 20, the scale factor is found by dividing YZ by BC

Scale factor =

10

20

=2

Now use the same scale factor to find the length of XZ:

XZ = 2 12 = 24