Proof Vocabulary Quiz

Define perpendicular

• two lines that intersect to form a right angle

• two lines that never meet

• angles that add to 90 degrees

• a rule in mathematics expressed by symbols or a formula

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Define bisect

• two lines that intersect to form a right angle.

• the exact middle point that divides something in half

• something that cuts into two equal pieces

• a proof by contradiction

Tags

CCSS.HSG.CO.C.9

Define postulate

• statements are used to prove the statement is true

• a suggestion that is considered true based on reasoning, discussion or belief

• a statement of the exact meaning of a word

• a rule in mathematics expressed by symbols or a formula

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

Define indirect proof

• a proof by contradiction

• a rule in mathematics expressed by symbols or a formula

• shows a statement to be true using definitions, theorems and postulates

• a suggestion that is considered true based on reasoning, discussion or belief.

Define midpoint

• sides that have the same length

• the exact middle point that divides something in half

• something that cuts into two equal pieces

• two lines that intersect to form a right angle

Tags

CCSS.HSG.GPE.B.6

Define direct proof

• statements are used to prove the statement true.

• a statement of the exact meaning of a word

• shows a statement to be true using definitions, theorems and postulates

• a rule in mathematics expressed by symbols or a formula.

Define supplementary

• angles that have the same measurement

• angles that add to 90 degrees

• angles that add to 180 degrees

• vertical angles are congruent

Tags

CCSS.7.G.B.5

Define parallel

• sides that have the same length

• two lines that never meet

• two lines that intersect to form a right angle

• angles that add to 180 degrees

Tags

CCSS.HSG.CO.A.1

Define congruent sides

• sides that have the same length

• is two sides for a linear pair, then they are supplementary

• two lines that never meet

• two lines that intersect to form a right angle

Tags

CCSS.8.G.A.2

Define theorem

• a proof by contrdiction

• a rule in mathematics expressed by symbols or a formula

• shows a statement to be true using definitions, theorems and postulates

• a suggestion that is considered true based on reasoning, discussion or belief.