Basic Geometry Angles

What are these figures called?

• Points

• Lines

• Angles

• Planes

Two angles whose sides form pairs of opposite rays.

• Congruent Angles

• Linear Pair

• Adjacent Angles

• Vertical Angles

The common endpoint of 2 rays

• Point

• Midpoint

• Vertex

• Bisect of an Angle

What do we measure angles in?

• Degree

• Feet

• Meters 

• Liters 

Divide into congruent segments or angles

• Bisector

• Vertex

• Opposite Rays

• Acute Angles

Two angles whose measures have a sum of 90.

• Complementary

• Right Angle

• Linear Pair

• Adjacent Angles

Two angles whose measures have a sum of 180.

• Straight Angle

• Linear Pairs

• Supplementary

• Adjacent Angles

Two angles that share a common vertex and side, but have no common interior points.

• Linear Pair

• Adjacent Angles

• Supplementary

• Complementary 

Two adjacent angles whose noncommon sides are opposite rays.

• Linear Pair

• Complementary 

• Congruent Angles

• Vertical Angles

Two rays that meet at a common end point are called an...

• point

• line

• angle

• line segment