Semester 1 Geometry Vocabulary Review

Point

• A dot

• 0 dimension

• Represented by a

  capital letter

• All of the above

Line

• Straight, infinite in both directions

• represented by 2 capital letters with a line symbol above it

• represented by a lower case letter

• All of the above

Plane

• A plan with an e

• Boring

• Flat 2D Surface, named with 3 points or a fancy capital letter from the side of the plane

• You fly them

A line segment

• Same thing as a line

• A line with 2 endpoints

• A line with one endpoint

• This doesn't exist in Geometry

2 angles that sum to 90 degrees

• Complementary

• Supplementary

• Linear Pair

• Vertical Angles

2 angles that sum to 180 degrees, may or may not be adjacent

• Complementary

• Supplementary

• Linear Pair

• Vertical Angles

2 angles that sum to 180 degrees, have to be adjacent

• Complementary

• Supplementary

• Linear Pair

• Vertical Angles

Share a vertex, congruent

• Linear Pair

• Vertical Angles

• Complementary

• Supplementary

Why are the triangles congruent?

• SSS

• SAS

• ASA

• AAS

Why are the triangles congruent?

• SSS

• SAS

• ASA

• AAS