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14 August, 09:48

Which set of measurements forms a right triangle? Use the Pythagorean theorem: a2 + b2 = c2.

A) 15, 20, 25

B) 15, 21, 26

C) 14, 20, 25

D) 14, 21, 25

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Answers (1)
  1. 14 August, 10:22
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    A. 15, 20, 25.

    Step-by-step explanation:

    25^2 = 625

    20^2 = 400

    15^2 = 225.

    Now 625 = 400 + 225 = 625 so it is choice A.
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