Right, acute or obtuse from the sides (compare c squared with a squared + b squared)

This type of question, asked 2 times: 26 Jul 2023 S1, 23 Sep 2024 S1. All 2 questions below, oldest first.

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Question 1
26 Jul 2023 S1
63 $Which of the following sets of lengths (in cm) will give three sides of an obtuse-angled triangle?$
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Question 2
23 Sep 2024 S1
56 $In the following sets, which set represents the sides of a right-angled triangle?$
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