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20 December, 02:44

The side lengths of a triangle are 5,8 and 12 is this a right triangle?

A. no, because 5 + 8 ≠ 12.

B. yes, because 5² + 8² = 12².

C. no, because 5² + 8² ≠ 12².

D. yes, because 5² + 8² < 12².

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  1. 20 December, 05:50
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    The side lengths of a triangle are 5,8 and 12 is this a right triangle?

    A. no, because 5 + 8 ≠ 12.

    B. yes, because 5² + 8² = 12².

    C. no, because 5² + 8² ≠ 12².

    D. yes, because 5² + 8² < 12²

    Step-by-step explanation:

    Pythagoras theorem states c^2=a^2 + b^2

    5^2=25

    8^2=64

    25+64=89
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