Similar shapes have sides with equal ratios to each other. To find each unknown side, compare its ratio to a known side.
For example, the ratio of the 15 mm side to the 22 mm side should be equal to the ratio of the z side to the 33 mm side.
Now solve for z.
z = 22.5 mm
You can now use that to find ratios for the other unknown sides.
Write two more ratios to solve for side x and side y.
15 y = (22.5) (54)
y = 81 mm
Now what does x equal?
Explore the problem with the etool below.
Click the link at right for the full version of the eTool: MC2 6-20 HW eTool