Geometry Chapter 2 & 3 Vocabulary Review

Identify the correct answer

• conclusion

• biconditional statement

• conditional statment

• counterexample

A statement that contains the phrase “if and only if” Two lines intersect to form a right angle if and only if they are perpendicular lines.

• negation

• inductive reasoning

• if-then form

• biconitional statment

A type of proof that has numbered statements and corresponding reasons that show an argument in a logical order

• truth table

• Two-colomn proof

• equivalent statements

• paragraph proof

Identify the correct answer

• line perpendicular to a plane

• perpendicular lines

• equivalent statements

• conditional statment

Identify the correct answer

• conjecture

• deductive reasoning

• counterexample

• biconditional statement

Identify the correct answer

• conclusion

• inverse

• counterexample

• hypothesis

Identify the correct answer

• biconditional statment

• conditional statement

• conjecture

• counterexample

A logical argument that uses deductive reasoning to show that a statement is true

• equivalent statements

• truth table

• proof

• truth value

The opposite of a statement If a statement is p, then the negation is “not p,” written ~p. Statement: The ball is red. Negation: The ball is not red.

• conjecture

• inverse

• deductive reasoning

• negation

An unproven statement that is based on observations

Example: The sum of any three consecutive integers is three times the second number.

• converse

• conclusion

• conjecture

• counterexample