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Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the
sides of this triangle?
5 cm and 8 cm
6 cm and 7 cm
7 cm and 2 cm
8 cm and 9 cm

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gufeliz1965

The question is asking which two sides compete the Pythagorean triple.

One side is x.

The length 13 given is the hypotenuse.

Which two numbers add up to 13?

6 + 7 = 13.

Answer: 6 cm and 7 cm

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