Lines, angles, and Triangles

Front

In a triangle, how many total degrees are there?

Back

180 degrees

Front

What is an obtuse angle?

Back

It is an angle which is more than 90*.

Front

What kind of intersecting lines are these?

Back

Perpendicular Lines.

Front

What is this?

Back

Point.

Front

Name this angle: It is less than 90 degrees.

Back

Acute.

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Front

What are parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is a straight angle?

Back

An angle that is exactly 180 degrees.

Front

What is a triangle?

Back

A polygon with three edges and three vertices.