Question

Triangle XY Z is similar to triangle ABC.

Answer 1

Answer:

13.5

Step-by-step explanation:

12/4=3

9/3=3

4.5x3=13.5

Answer 2

Answer:

13.5=k

Step-by-step explanation:

When 2 triangles are similar the ratio of their corresponding sides are equal.

$\frac{XY}{YZ}=\frac{AB}{BC}$

Plug in the values given:

$\frac{4.5}{3} =\frac{k}{9}$

Cross Multiply

40.5=3k

Divide to isolate k

13.5=k