is it possible to construct a triangle whose sides are 4.8 cm , 6.2 cm and 12 cm. if not, why?

The answer is NO.
This is because the sum of two sides of a triangle must always be greater than the third side (not even equal).
In this problem,
4.8+6.2=11,which is lesser than 12.
Therfore this cannot be possible.

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