Lines and Line Segments
Angles
Points and Rays
Two-dimensional Shapes
Parallel and Perpendicular Lines
100

A straight row of points that goes on forever in both directions.

What is a line?

100

Formed when two lines meet at a common endpoint

What is an angle?

100

A specific location in space

What is a point?

100
A flat shape that only has length and width

What is a two-dimensional shape?

100

Lines that never cross

What are parallel lines?

200

Four

How many lines does a square have?

200

An angle that measure less than 90 degrees

What is an acute angle?

200

A dot

What symbol represents a point?
200

Triangle

What shapes has three sides and three angles?

200

Lines that intersect to form 90 degrees

What are perpendicular lines?

300
A piece of a line that has two endpoints

What is a line segment?

300
Is equal to 90 degrees

What is an right angle?

300

A straight row of points that starts on one point and goes on forever in one direction

What is a ray?

300

A two-dimensional shapes that has four sides that are the same length

What is a rhombus?

300

One

How many sets of parallel lines does a trapezoid have?

400

Five

How many line segments does a pentagon have?

400

A type of angle that is larger than 90 degrees but less than 180 degrees

What is an obtuse angle?

400

With capital letters like point A

How should you label points?

400

A two dimensional shape that has nine line segments

What is a star?

400

Two

How many perpendicular lines does a triangle have?
500
One

How many line segments are in a circle?

500

Seven

How many angles does a heptagon have?

500

Ten

How many points does a decagon have?

500

A shape that has nine sides and nine angles

What is a nonagon?

500

Four

How many perpendicular lines does a rectangle have?