Is this shape a quadrilateral?
Today we'll learn how to spot a quadrilateral. It's a special kind of shape.
Here's the rule: a quadrilateral has exactly four sides and four angles.
Look at this shape. Let's check — is it a quadrilateral?
We'll count the sides. One.
Two.
Three.
Four sides!
Now the corners — one, two, three, four angles.
Four sides and four angles. Yes, this shape is a quadrilateral!
Now you try. Count the corners of this figure. How many corners has it?