Video: Sorting 2D Shapes into Groups

Where does this shape belong? [A] Not a rectangle [B] Rectangle

01:19

Video Transcript

Where does this shape belong? Not a rectangle or rectangle?

We’re shown a shape. We have to decide if this shape belongs to the group of shapes which are not rectangles. Or if the shape belongs to the group of shapes which are rectangles. So, we have to decide if this shape is a rectangle. Let’s count the number of sides. We know that rectangles have four sides. Let’s count them.

Here is one, two, three, four. This shape does have four sides. Does it have four corners? One, two, three, four. Yes, it does. It’s a rectangle. It has four sides and four corners. It belongs with the group called rectangles. This is where the shape belongs.

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