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Which of the 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 21)

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cmvancamp1122

Answer:

C. 3,4,5.

Step-by-step explanation:

The longest side must be < the sum of the two shorter sides, otherwise, you can't connect the 3 sides to make a triangle. In A, you get a straight line 4 cm long when you connect them together. In B and D you can't connect them together.

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