2D shapes can be found printed in a book or on a website. 2D shapes have sides and corners. A rectangle has 4 straight sides and 4 corners. A square is a special type of rectangle, where all 4 ...

What happens when you push the side of a rectangle? The rectangle is a wobbly, unstable shape. When you push the side, it flops into a slanted parallelogram. This happens without any of the ...

The area of the rectangle is found by multiplying the base and the perpendicular height. The base and the perpendicular height are at right angles. One side of the parallelogram is the base.