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Classify Triangles by Sides

Triangles can be classified on the basis of sides as follows:

 

Scalene triangle

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All three sides are of different lengths

Isosceles triangle

22

Two sides are of same length

Equilateral triangle

33

All three sides are of same length





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Help

The correct answer is

Remember :

The smallest number is the one that comes first while counting.

Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.