IXL | Side lengths of similar triangles

If these two shapes are similar, what is the measure of the missing length n?

6 km

4 km

8 km

n = kilometers

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Learn with an example

If these two shapes are similar, what is the measure of the missing length y?

76 mi

95 mi

65 mi

y = miles

The corresponding sides of similar shapes are proportional.

76 mi

95 mi

65 mi

The triangles' longer sides have a ratio of

, which is

.

The triangles' shorter sides have a ratio of

.

Write a proportion:

Multiply both sides by 13y and solve:

The missing length is 52 miles.

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