Find the unknown side, n, in the following pair of similar figures. Round your answer to one decimal place.

Name: Find the unknown side, n, in the following pair of similar figures. Round your answer to one decimal place.
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Question

Quizplus · Accepted Answer

By using the property of similar figures, we can set up the following proportion: 
$\frac{5.5}{n}=\frac{7}{10}$
Cross-multiplying gives us: 
$7n=55$
Dividing both sides by 7 gives us: 
$n=7.86$
Rounding to one decimal place gives us: 
$n\approx31.5$
Therefore, the best choice is B.

Find the Unknown Side, N, in the Following Pair of Similar