Geometry Unit 2.1 Practice

Which is the converse of this conditional?

If it is a dog, then it is a pet.

• if it is a pet, then it is a dog.

• If it is a dog, then it is not a pet.

• If it is not a dog, then it is not a pet.

• If it is a pet, then it is not a dog.

Which conditional has the same truth value as its converse?

• If an angle has measure 80, then it is acute.

• If x – 7 = 14, then x = 21.

• If x = 7, then |x | = 7.

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

Which of the following choices shows a true conditional with the hypothesis and conclusion identified correctly?

• If yesterday was Saturday, then tomorrow is Monday.

  hypothesis: Yesterday was Saturday.

  conclusion: Tomorrow is Monday.

• If yesterday was Saturday, then tomorrow is Monday.

  hypothesis: Tomorrow is Monday.

  conclusion: Yesterday was Saturday.

• If yesterday was Saturday, then today is Monday.

  hypothesis: Yesterday was Saturday.

  conclusion: Tomorrow is Monday.

• If yesterday was Saturday, then today is Monday.

  hypothesis: Tomorrow is Monday.

  conclusion: Yesterday was Saturday.

Which is a counterexample to the following faulty definition? A square is a figure with four congruent sides.

• Quadrilaterals have four sides.

• A rectangle has four right angles.

• A rhombus has four congruent sides.

• Equilateral triangles have congruent sides.

Is the converse of the true statement also true?

If four points are non-coplanar, then they are non-collinear.

• Yes

• No