3rd Grade Geometry Review

Quadrilaterals

100

This is a word that names ALL shapes with 4 sides.

What is a quadrilateral?

200

A four-sided shape with 4 EQUAL sides with 4 right angles

What is a square?

300

A quadrilateral with two pairs of parallel sides and all sides of equal length.

What is a rhombus?

400

A quadrilateral with only one set of parallel lines.

What is a trapezoid?

500

A four-sided parallelogram with 4 right angles.

What is a rectangle?

Polygons

100

shape with 3 sides 

What is a triangle?

200

shape with 5 sides

What is a pentagon?

300

shape with 6 sides

What is a hexagon?

400

shape with 8 sides

What is an octagon?

500

 shape with 10 sides

What is a decagon?

Vocabulary

100

A straight path continues in both directions and does not end. 

What is a line?

200

This is true about ALL quadrilaterals.

What is "They all have 4 sides."

300

A shape with only straight sides and no curves.

What is a polygon?

400

Formed by points that make curved paths, line segments, or both.

What are plane shapes?

500

Formed by two rays that share an endpoint.

What is an angle?

Lines and Angles

100

An angle that forms a square corner.

What is a right angle?

200

Lines that cross or meet to form angles. 

What are intersecting lines?

300

Lines that cross to form right angles.

What are perpendicular lines? 

400

Lines that run like railroad tracks. If they keep going on forever, they would never ever touch.

What are parallel lines?

500

A shape that can never have parallel lines.

What is a triangle?