Sides of two similar triangles in a ratio: ratio of their areas

The same question, asked 2 times: 21 Jul 2023 S2*, 12 Sep 2025 S2. Every wording below, oldest first.

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Question 1
21 Jul 2023 S2
71 $The sides of two similar triangles are in the ratio 5:7. The areas of these triangles are in the ratio:$
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Question 2
12 Sep 2025 S2
72 $Two triangles are similar with sides in the ratio 3:5. What is the ratio of their areas?$
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