EM-1420
Testing for a right angle
E Math · Secondary 3 · Hard · Testing for a right angle
Which of the following sets of side lengths can form a right-angled triangle?
- 6 cm, 8 cm, 11 cm
- 9 cm, 12 cm, 15 cm
- 7 cm, 9 cm, 12 cm
- 10 cm, 13 cm, 15 cm
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