Question
Is it possible to construct a triangle with lengths of its sides as given below? Give reason for your answer.
$2.5\ cm, 5\ cm, 7\ cm$
$2.5\ cm, 5\ cm, 7\ cm$
✓
Answer
Yes, because the sum of two sides of a triangle is greater than the third side.
$2.5 + 5 > 7; 5 + 7 > 2.5; 2.5 + 7 > 5$
$2.5 + 5 > 7; 5 + 7 > 2.5; 2.5 + 7 > 5$
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