Congruent Shapes

Congruent shapes are same in size and shape. For example:

Remember

Congruent shapes may be turned or colored differently.





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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.