Supplementary & midpoint,

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What is an obtuse angle?

Back

An angle that measures more than 90° but less than 180°.

Front

What is a straight angle?

Back

An angle that measures exactly 180°.

Front

What is the x-axis in a coordinate plane?

Back

The horizontal number line that divides the coordinate plane.

Front

What is the y-axis in a coordinate plane?

Back

The vertical number line that divides the coordinate plane.

Front

What is the origin in a coordinate plane?

Back

The point where the x-axis and y-axis intersect, represented as (0,0).

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

What is a quadrant in a coordinate plane?

Back

One of the four sections created by the x-axis and y-axis.

Front

If two angles are supplementary, what is their sum?

Back

180°.