Classify Triangles

 

Scalene triangle

Scalene b

All three sides are of different lengths

All three angles are of different measures

Isosceles triangle

Isosceles b

Two sides are of same length

Two angles are of same measure

Equilateral triangle

Equilateral b

All three sides are of same length

All three angles are of same measure

Acute triangle

Acute

All three angles are less than 90°

Right triangle

Right

One angle is exactly 90°

Obtuse triangle

Obtuse

One angle is more than 90°





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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.