Polygon

Shapes and Solids 2

Primary four

Learning Objectives

• Identify, describe, visualize, draw and make a wider range of 2D shapes including a range of quadrilaterals and the heptagon, use pinboards to create a range of polygons

Multiple Choice

Is this shape polygon?

• Yes

• No

Multiple Choice

Is this shape polygon

• Yes

• No

Multiple Choice

Is this shape polygon?

• Yes

• No

Multiple Choice

Quadrilateral has 4 sides and 4 vertices

• True

• False

Multiple Choice

A square has 2 equal sides

• True

• False

Regular and Irregular Polygons

We can classify polygons as regular or irregular polygons based on the lengths of their side and the size of their angles.

look at the pictures!

Regular Polygons

The shapes that have all equal sides and equal angles

Irregular Polygons

The shapes do not have sides and angles that are all equal