Proof Practice

What is the missing statement in the proof?

• m∠ABD+m∠DBC=m∠ABC
• m∠ABD=m∠DBC
• m∠ABC=m∠ABC
• none of the other choices are correct

Tags

CCSS.7.G.B.5

The last statement in a proof is always what part of the information?

• The "Prove" statement
• The "Given" Statement
• Who knows, none of this matters anyway
• I am Groot

If ∠A ≅ ∠B, then we know m∠A = m∠B because...

• Given
• Definition of Congruent
• Congruent means equal
• Transitive Property

Tags

CCSS.HSG.CO.B.7

The Transitive Property says that if AB = BC and BC = CD, then ___________

• AB = BC
• BC = CD
• AB = CD
• C is for Cookie

What is the justification that the measure of angle DAE plus the measure of angle EAF equals the measure of angle DAF?

• definition of a right angle
• definition of complementary angles
• definition of an angle bisector
• segment addition postulate

Tags

CCSS.4.MD.C.7

If A and B are vertical angles, what can we conclude about A and B?

• they are complementary angles
• they are supplementary angles
• they are congruent angles
• they are adjacent angles

Tags

CCSS.7.G.B.5

Given that angles A and B form a linear pair what is the next step we can conclude by definition of a linear pair?

• m∠A + m∠B = 90
• A and B are both acute angles
• m∠A + m∠B = 180
• A and B are both obtuse angles

Tags

CCSS.7.G.B.5

What is the reason?

• Definition of Congruent 
• Symmetric
• Transitive
• Definition of Corresponding

Tags

CCSS.HSG.SRT.B.5

What is the justification that segment GI is congruent to segment IH?

• segment addition postulate
• definition of perpendicular
• definition of midpoint
• definition of a segment

Tags

CCSS.HSG.SRT.B.4

If lines are parallel, then corresponding angles are congruent.
What is the CONVERSE of this statement?

• Converse shoes are not as comfortable as Saucony.
• If corresponding angles are congruent, then lines are parallel.
• Corresponding angles occupy the same relative position at each intersection where a tansversal crosses two others lines.
• If  a = b  and  b = c  then  a = c.

Tags

CCSS.8.G.A.5