Conditional Statements and Deductive Reasoning Challenge

The video tutorial introduces Chapter Two on Reasoning and Proofs, focusing on explaining why answers are correct. It covers conditional statements, converse, and biconditional statements, emphasizing the importance of logical reasoning in geometry. The tutorial also introduces the concept of perpendicularity and explains deductive reasoning through exercises, highlighting the need to justify answers with facts rather than assumptions.

What is the main focus of reasoning in Chapter Two?

• To explain why an answer is correct

• To memorize definitions

• To solve equations

• To show work

How can a traditional sentence be turned into a conditional statement?

• By using the words AND and OR

• By using the words BECAUSE and SO

• By using the words WHEN and WHERE

• By using the words IF and THEN

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

In a conditional statement, what follows the IF?

• The definition

• The conclusion

• The hypothesis

• The result

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

Which of the following is a correct conditional statement?

• If the angle is acute, then it is 30 degrees.

• If the polygon has five sides, then it is a hexagon.

• If the polygon is a triangle, then the sum of the measures of the interior angles is 180 degrees.

• If points A, B, and C lie on the same line, then they are not collinear.

What is a converse statement?

• A statement that negates the hypothesis

• A statement that repeats the hypothesis

• A statement that switches the hypothesis and conclusion

• A statement that adds more conditions

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

What phrase is used in a biconditional statement?

• If and only if

• And and or

• Because and so

• When and where

Tags

CCSS.L.4.1C

CCSS.L.9-10.1B

How are perpendicular lines defined in geometry?

• Two lines that form an acute angle

• Two lines that are parallel

• Two lines that intersect to form a right angle

• Two lines that never intersect

Tags

CCSS.HSG.CO.A.1

What symbol is used to represent perpendicular lines?

• An upside down T

• A right angle symbol

• A parallel line symbol

• A congruent symbol

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What is deductive reasoning?

• Using definitions and facts to base a conclusion

• Trusting what you see

• Making assumptions based on appearances

• Guessing the answer

Tags

CCSS.RI.6.1

CCSS.RI.7.1

CCSS.RI.8.8

CCSS.RL.7.1

CCSS.RL.9-10.1

Why can't we trust our eyes when using deductive reasoning?

• Because we need to memorize facts

• Because we should trust our instincts

• Because we need to guess

• Because appearances can be deceiving

Tags

CCSS.L.1.1J

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.K.1D