Geometry Terms and Notation

Two angles that sum to 90 degrees.

• Complimentary Angles

• Supplementary Angles

• Right Angle

• Obtuse Angle

A flat surface with no thickness that extends in all directions forever.

• Ray

• Line

• Plane

• Parallelogram

Which of the following is NOT a correct way to name the line shown? 

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• 
• 
• 

• Congruent

• Similar

• Parallel 

• Perpendicular

Which is the notation for the diagram shown?

• 
• 
• 
• None of these

Identify the relationship between angle a and b.

• vertical

• supplementary (angles add up to 180^o)

• complementary (angles add up to 90^o)

A line, ray or segment that divides a segment into two congruent segments.

• Ray

• Midpoint

• Bisector

• Plane

What is this shown in this picture?

• Line

• Line segment

• Ray

• Points

What is A, B, and C called in Geometry?

• Points

• Lines

• Letters

What term is the notation describing?

• Points

• Line Segment

• Line

• Ray