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Triangle Inequality

Is it possibl...

Question

Is it possible to construct a triangle whose sides measure 7 cm, 5 cm and 12 cm?
(a) Yes
(b) No

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Solution

(b) No
It is because the sum of any two sides of a triangle is always greater than the third side.
Here, the sum of two sides (i.e., 7+5) is equal to the third side (12 cm).

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