2. Two sides of a triangle are 5 cm and 9 cm long. What can be the length of its third side
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Step-by-step explanation:
Let the length of the third side be x cm.
Sum of any two sides of a triangle is greater than the third side.
∴ 5 + 9 >x
⇒x<14
Hence, the length of the third side must be less than 14 cm.
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