1st Period_Conditional Statements Practice

Identify the hypothesis and the conclusion of the conditional statement:

If two lines never intersect, then the two lines are parallel.

• Hypothesis: Two lines never intersect.

  Conclusion: Two lines are parallel.

• Hypothesis: Two lines are parallel.

  Conclusion: Two lines never intersect.

• Hypothesis: Two lines intersect.

  Conclusion: Two lines are not parallel.

• Hypothesis: Two lines are not parallel.

  Conclusion: Two lines intersect.

Select the statement that is the conditional statement for the following:

"All rectangles have four sides."

• If a rectangle has 4 sides, then all rectangles have four sides.

• If a figure has four sides, then it is not a rectangle.

• If a figure is a rectangle, then all rectangles have four sides.

• If a figure is a rectangle, then it has four sides.

Fill in the answers in the statement below:

"Another name for an if-then statement is a _________. Every conditional statement has two parts. The part the follows the word "if" is the ___________, and the part that follows the word "then"

• hypothesis; conditional; conclusion

• conditional; hypothesis; conclusion

• conditional; conclusion; hypothesis

• hypothesis; conclusion; conditional

Fill in the blank:

A conditional can have a ______________ of true or false.

• hypothesis

• truth value

• counterexample

• conclusion

• The number is a multiple of 2.

• If a number is not a multiple of 2, then it's not a multiple of 8.

• The number is a multiple 4.

• If a number is a multiple of 8, then it's a multiple of 2.

Is the statement below a good definition? If not, find a counterexample.

A square is a figure with two pairs of parallel sides and four right angles.

• The statement is a good definition.

• No, a rhombus is a counterexample.

• No, a rectangle is a counterexample.

• No, a triangle is a good counterexample.

A good way to prove that a statement is NOT true is to find a ______________.

• Converse

• Conditional

• Biconditional

• Counterexample

What type of statement is the following?

"The angle is a right angle if and only if its measure is 90 degrees."

• Biconditional

• Conditional

• Contrapositive

• Converse

Determine the truth value of both statements:

Statement 1: If an angle is a right angle, its measure is 90.

Statement 2: If an angle's measure is 90, then the angle is a right angle.

• Both statements are FALSE.

• Both statements are TRUE.

• Statement 1 is FALSE and Statement 2 is TRUE.

• Statement 1 is TRUE and Statement 2 is FALSE.