Geometry Review

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect. They are always congruent (equal measures).

Front

What do supplementary angles add up to?

Back

Supplementary angles add up to 180 degrees.

Front

What is the intersection of two lines?

Back

The intersection of two lines is the point where they cross each other.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

What is the sum of angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is a complementary angle?

Back

Complementary angles are two angles that add up to 90 degrees.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.