A shape is considered three dimensional if it can be measured in 3 directions i.e, height, width, and length.
For example: Consider the shape given below.
Let's identify the shape.
This shape has rectangular faces.
So, this is a cuboid.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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.