Angle Basics and Vertical Angles

Angles that are exactly 90 degrees

• Acute

• Right

• Obtuse

• Straight

Angles that are exactly 180 degrees

• Acute

• Right

• Obtuse

• Straight

Angles that are greater than 0 degrees, but less than 90 degrees.

• Acute

• Right

• Obtuse

• Straight

Angles that are greater than 90 degrees, but less than 180 degrees.

• Acute

• Right

• Obtuse

• Straight

Angles that share a common side and a common vertex.

• Vertical

• Adjacent

• Congruent

• Supplementary

Angles that are opposite each other, when two lines are intersecting.

• Vertical

• Adjacent

• Congruent

• Supplementary

Angles that have the same measurement.

• Vertical

• Adjacent

• Congruent

• Supplementary

Name the angle.

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• Acute

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• Obtuse

Angle 5 is adjacent to what other angle?

Angle 5 is vertical to what other angle?