42. Write this statement as a conditional in if-then form: Coplanar points are

points that lie on the same plane.

A. If points lie on the same plane, then they are coplanar.

B. If points don’t lie on the same plane, then they are not coplanar.

C. If points are coplanar, then they lie on the same plane.

D. If points are not coplanar, then they do not lie on the same plane



43. Which statement is a contradiction of the statement XY≅RT?

A. XY<RT B. XY≈RT C. TR≅YX D. XY≤RT



44. Is the following statement true? "If an angle measures 30 degrees, then it is acute."

A. No B. Yes C. Maybe D. Sometimes



45. Alice is going to the emergency room because she has fractured her arm.

Bone fractures are always painful. Therefore, Alice is in pain. Identify what

kind of reasoning is this.

A. Deductive

B. Inductive

C. Both Inductive and Deductive

D. Neither Inductive nor Deductive



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

A. they are complementary angles

B. they are congruent angles

C. they are supplementary angles

D. they are adjacent angles



47. The first step of an indirect proof is to ____?

A. write the given

B. assume the negation of what you are trying to prove

C. assume the negation of the given

D. contradict the given



48. If CFE is an obtuse angle , what is true?

A. CFE can not be 1100

B. CFE is less than 900.

C. CFE is greater than 900

D. CFE is supplementary.



49. What is the converse of the statement, "If x is odd, then 3x is odd."

A. If 3x is not odd, then x is odd.

B. If 3x is odd, then x is odd.

C. If x is not odd, then 3x is not odd

D. If 3x is not odd, then x is odd.

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