over lesson 2–4 5-minute check 4 a.valid b.invalid determine whether the stated conclusion is...

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Over Lesson 2–4 A. valid B. invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid. Given: A and B are congruent. Conclusion: A and B are vertical angles. BELL RINGER You do not necessarily need to write your answer down anywhere, simply read the question, answer the question, and be prepared to share your answer and process with the class.

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Page 1: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Over Lesson 2–4

A. valid

B. invalid

Determine whether the stated conclusion is valid based on the given information. If not, choose invalid.Given: A and B are congruent.Conclusion: A and B are vertical angles.

BELL RINGER

You do not necessarily need to write your answer down

anywhere, simply read the question, answer the question, and be prepared to share your answer and process with the

class.

Page 2: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 3: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 4: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 5: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 6: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 7: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 8: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 9: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 10: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 11: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL

Page 12: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Used conditional statements and the converse, inverse and contrapositive to analyze and write statements.

• Identify and use basic postulates about points, lines, and planes.

• Write paragraph proofs.

Page 13: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

• postulate

• axiom

• proof

• theorem

• deductive argument

• paragraph proof

• informal proof

Page 14: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 15: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Fill in the blanks in your handout with the above information

Page 16: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Fill in the blanks in your handout with the above information

Page 17: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Analyze Statements Using Postulates

Answer: Always; Postulate 2.5 states that if two points lie in a plane, then the entire line containing those points lies in the plane.

A. Determine whether the following statement is always, sometimes, or never true. Explain.

If plane T contains contains point G, then plane T contains point G.

Page 18: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Analyze Statements Using Postulates

Answer: Never; noncollinear points do not lie on the same line by definition.

B. Determine whether the following statement is always, sometimes, or never true. Explain.

contains three noncollinear points.

Page 19: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

A. Determine whether the statement is always, sometimes, or never true.

Plane A and plane B intersect in exactly one point.

A. always

B. sometimes

C. never

Page 20: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

B. Determine whether the statement is always, sometimes, or never true.

Point N lies in plane X and point R lies in plane Z. You can draw only one line that contains both points N and R.

A. always

B. sometimes

C. never

Page 21: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Fill in the blanks in your handout with the above information

Page 22: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Write a Paragraph Proof

Given:

Prove: ACD is a plane.

Proof: and must intersect at C because if two lines intersect, then their intersection is exactly one point. Point A is on and point D is on . Points A, C, and D are not collinear. Therefore, ACD is a plane as it contains three points not on the same line.

Page 23: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 24: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

Don’t forget to study for your QUIZ

tomorrow.. Over 2-1, 2-2, 2-3, & 2-5.

Page 25: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid

HW:Pages 130-132 (#1-#13) ALL,

(#16-#28) Evens, (#34-#41) ALL

Page 26: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 27: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 28: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 29: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid
Page 30: Over Lesson 2–4 5-Minute Check 4 A.valid B.invalid Determine whether the stated conclusion is valid based on the given information. If not, choose invalid