Video: Naming a Given Shape

What is the name of this shape?

01:55

Video Transcript

What is the name of this shape?

We’ve been given a 2D shape, and we’re asked to decide the name of this shape. Let’s look more closely at this shape. Let’s count the number of sides it has. Here is one, two, three, and four. Can you think of any 2D shapes which have four sides? A square has four sides, but all the sides in a square are the same length. In our shape, the opposite sides are the same length. So, our shape can’t be a square.

Can you think of any more 2D shapes which have four sides? A rectangle has four sides. This pair of sides are opposite and equal in length. And this pair of sides is also equal in length. It looks like our shape is a rectangle. Do we know anything else about rectangles? Yes, we do. They have four right angles. Our shape also has four right angles. So, we can say that our shape is called a rectangle. It has four sides, four right angles, and the opposite sides are the same length. The name of this shape is rectangle.

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