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5 votes
A triangle has two sides of lengths 7 and 9. What value could the length of the third side be?

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User Atedja
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1 Answer

2 votes
x - length of the 3rd side


7+9>x \wedge 7+x>9 \wedge 9+x>7\\ x<16 \wedge x>2 \wedge x>-2\\ x\in(2,16)
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User Leo Bartkus
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