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Geometry

📚 Learn how Count the sides, then count the corners. A circle has none!

Step 1 of 5

Triangle corners

Each place two sides meet is a corner. A triangle has 3 corners. Touch them: 1, 2, 3.

Step 2 of 5

Square corners

A square has 4 corners, one at each turn. Count them with me.

Step 3 of 5

Circle corners?

Can you find a corner on a circle? Nope! A circle has 0 corners. It just curves all the way around.

Step 4 of 5

Rectangle sides

Count the sides of this rectangle: long, short, long, short. That is 4 sides.

Step 5 of 5

Two triangles

Here are 2 triangles. Each has 3 sides. 3 and 3 more make 6 sides altogether!