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9 votes
9 votes
The equilateral triangles shown below are similar 2 cm, 5 cm. What is the ratio of their areas?

User Xinqiu
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1 Answer

11 votes
11 votes

The ratio between the area of two similar triangles can be described using the following expression:


(A_1)/(A_2)=((side_1)/(side_2))^2_{}

Applying the data from the problem we have:


\begin{gathered} (A_1)/(A_2)=((2)/(5))^2 \\ (A_1)/(A_2)=(4)/(25) \end{gathered}

The answer is A.

User Superluminal
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