prior knowledge for proofs

• linear pair

• adjacent

• vertical

• supplementary

• vertical

• supplementary

• vertical

• supplementary

Which pair of angles are corresponding angles?

• alternate exterior angles

• consecutive interior angles

• alternate interior angles

• corresponding angles

IF E is a midpoint of AC, which segments are congruent?

• AB and DC

• DE and EB

• AE and EC

• A and C

If AC bisects DB, which segments are congruent?

• AB and DC

• DE and EB

• AE and EC

• A and C

Which reason justifies < AEB being congruent to <CED?

• corresponding angles

• linear pairs

• alternate interior angles

• vertical angles