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7 May, 13:43

HURRY

Which unit lengths represent the sides of a right triangle? Select two answers.

A.

3, 4, and 5

B.

6, 8, and 15

C.

20, 21, and 28

D.

9, 12, and 15

+3
Answers (2)
  1. 7 May, 14:37
    0
    Answer:A and D

    Step-by-step explanation:

    A. 3^2+4^2=25 and the square root of that is 5.

    D. 9^2+12^2=225 and the square root of that is 15.
  2. 7 May, 15:43
    0
    A would be the correct answer.

    The numbers 3,4,5 are a Pythagorean Triple. This means they can be put in the form a^2 + b^2 = c^ where a=3, b=4 and c=5.
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