Lesson 4 [When Shapes Join]

Lesson-4

When Shapes Join

shapes (or figures) that can 

be drawn on flat surfaces
 
are plane figures

Example:Triangle, 

rectangle, square, Circle

TRIANGLE
A triangle is a plane figure. 

It has 3 sides and 3 corners.

RECTANGLE
A rectangle is a plane 

figure. It has 4 sides and 

4 corners. It's opposite sides

 are same length

SQUARE
A square is a plane figure. It

 has 4 sides and 4 corners.

 All sides are same length.

CIRCLE
A Circle is a plane figure. It 

has no sides and no corners.

It has a curved face.

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