Proof Vocabulary

Two angles who sum is 90 degrees

• right angle
• supplementary angle
• complementary angles
• linear pair

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

Two angles who sum is 180 degrees

• Complementary angles
• Right angle
• Supplementary Angles
• Acute angles

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

The nonadjacent angles formed by two intersecting lines.

• Linear Pair
• Supplementary Angles
• Vertical Angles
• Adjacent Angles

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

Which property is depicted if AD = BD

• Def of Angle Bisector

• Def of Midpoint

• Def. Of Perpendicular Bisector

• Reflexive Property

What property is depicted if  $\angle ACD\ \cong\angle BCD$  

• Def of angle bisector

• Def of midpoint

• Def of Perpendicular 

• Reflexive Property. 

Identify the angle bisector segment

• AD

• DG

• GB

• DB

A geometric figure that divides an angle into two congruent halves

• def of midpoint

• def of segment bisector

• def of angle bisector

Tags

CCSS.HSG.CO.C.9

If M is the midpoint of segment RT, what must be true

• RS = SM

• RS = ST

• RS = 1/2*MT

• RM = MT

Tags

CCSS.HSG.CO.C.10

Which of the following theorems/postulates would verify that ∠COB & ∠AOD are congruent?

• Straight Angle Theorem

• Congruent Compliments Theorem

• Vertical Angles Theorem

• Linear Pair Theorem

Tags

CCSS.7.G.B.5

If the ray HK is bisecting ∠GHJ, then what reason would you use to say ∠GHK is congruent to ∠KHJ?

• Definition of Midpoint

• Definition of Angle Bisector

• Definition of Congruent

• Definition of Segment Bisector

Tags

CCSS.HSG.CO.C.9