Show:
Lines, Line Segments, and Rays
Types of Lines
Polygons
Types of Triangles
Angles
100

This is a straight path that goes on and on in both directions.

What is a line?

100
These lines are the same distance apart ALWAYS.
What are parallel lines?
100
It has three sides and three angles.
What is a triangle?
100

A triangle with 3 angles less than 90*.

What is an acute triangle?

100
A 90 degree angle.
What is a right angle?
200

Part of a line with endpoints on each end.

What is a line segment?

200
These lines will cross.
What are intersecting lines?
200
It has four sides and four angles.
What is a square?
200

A triangle with exactly one angle measuring 90*.

What is a right triangle?

200
An angle that is smaller than 90 degrees.
What is an acute angle?
300
This has a starting point, but goes on and on in one direction.
What is a ray?
300
These lines are not touching, but if you extended them out, they would.
What are intersecting lines?
300
It has five sides and five angles.
What is a pentagon?
300

A triangle with 3 sides of equal length.

What is an equilateral triangle?

300
An angle that is bigger than 90 degrees.
What is an obtuse angle?
400
This is named for the starting point and another point somewhere along the way and in that order.
What is a ray?
400
An example is railroad tracks.
What are parallel lines?
400
It has six sides and six angles.
What is a hexagon?
400

A triangle with two sides of equal length.

What is an isosceles triangle?

400

The angle found at the corner of your desk.

What is a right angle?

500

A specific location is marked with one of these.

What are points?

500

Lines that intersect to form 90* angles.

What are perpendicular lines?

500
It has eight sides and eight angles.
What is an octagon?
500

A triangle with no sides of equal length.

What is a scalene triangle?

500

What is the angle formed when laying back in your chair?

What is an obtuse angle?