Geometry Unit 2 Vocab Activity

Which of the following best describes a biconditional statement?

• A statement that switches the hypothesis and conclusion of a conditional

• A statement that negates both parts of a conditional

• An “if and only if” statement that states both a conditional and its converse are true

• A statement that provides a single counterexample which proves the conjecture is false.

Which of these describes inductive reasoning?

• Reasoning that starts with a rule and applies it to a specific case

• Reasoning that uses evidence to form a conjecture

• Reasoning that shows a conjecture is false

• Reasoning that always proves a statement

Which of these is an example of a conjunction?

• “It is raining or it is sunny.”

• “If it rains, then the ground is wet.”

• “It is raining and it is cold.”

• “The opposite of it is raining.”

Tags

CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

If a statement is false, what is its truth value?

• True

• False

• Unknown

• Conjectured

If the statement is “If it is a dog, then it is an animal,” which of these is the contrapositive?

• If it is not a dog, then it is not an animal.

• If it is not a dog, then it is not an animal.

• If it is an animal, then it is a dog.

• If it is not an animal, then it is not a dog.

Tags

CCSS.L.11-12.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.8.2D

CCSS.W.9-10.2D

Which of these is an example of a conjecture?

• All supplementary angles add up to 180

• The segment addition postulate

• Since all the birds I see can fly, I predict all birds can fly

• 2 + 3 = 5

Tags

CCSS.3.MD.D.8

Which of these best defines negation?

• Stating the opposite of a statement

• Switching the hypothesis and conclusion of a conditional

• Combining two statements using "and"

• Providing an example to disprove a statement

Tags

CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

What is the index of 5 in the sequence that starts like this? 2, 3, 5, 7, 11, 13…

• 1

• 3

• 5

• prime number

Tags

CCSS.4.OA.C.5

Which of these best describes a contrapositive?

• Switches the hypothesis and conclusion of a conditional

• Negates and switches the hypothesis and conclusion of a conditional

• Negates both parts of a conditional without switching

• Combines two statements with “and”

Which of these is an example of the law of detachment?

• If it rains, the grass will grow. The grass grows. Therefore, it rains.

• If it rains, the grass will grow. The grass does not grow. Therefore, it does not rain.

• If it rains, the grass will grow. It does not rain. Therefore, the grass grows.

• If it rains, the grass will grow. It rains. Therefore, the grass grows.