Similarity of squares

The ratio of the similarity of the squares ABCD and KLMN is 2.5. Square KLMN area is greater than area of a square ABCD with side a:

2,5 times
7,5 times
6,25 times « Correct result
a.a times

Step-by-step explanation:

$$\begin{gathered} S_1=a^2 \\ {S}_2=(2.5a{)}^2=2.5^2{S}_1=6.25S_1 \end{gathered}$$

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