Applications of Area and Perimeter5,525 Plays
Area of a rectangle = length × width
Area of a square = side × side
Perimeter is the sum of the lengths of all the sides of the object.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.