2D and 3D Shapes
In two-dimensional shapes:
Sides are the straight lines that make a flat shape.
A corner is a point where two sides meet.
An angle is formed where two sides of a shape meet.
In three-dimensional shapes:
A face is a flat surface of a 3D shape.
An edge is where two faces of a 3D shape meet.
A vertex is where two or more edges of a 3D shape meet.
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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.