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6 November, 00:02

Which of these side lengths could form a triangle

A) 2 cm, 2 cm, 4 cm

B) 3 cm, 5 cm, 10 cm

C) 3 cm, 4 cm, 5 cm

D) 4 cm, 8 cm, 15 cm

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Answers (2)
  1. 6 November, 00:50
    0
    C) 3 cm, 4 cm, 5 cm

    Step-by-step explanation:

    Using process of elimination and Pythagora's Theorem, find which of the smaller sides, when their squares are found equal to the largest number squared.

    A, B, & D are wrong because:

    A: 4 + 4 ≠ 16

    B: 9 + 25 ≠ 100

    D: 16 + 64 ≠ 225

    BUT CON THE OTHER HAND 9 + 16 = 25
  2. 6 November, 03:01
    0
    The answer is C.) 3cm, 4cm, 5cm

    Step-by-step explanation:

    The sum of any two sides of a triangle must be greater than the length of the third side. The only choice that fits this requirement is 3 cm, 4 cm, 5 cm.
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