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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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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HW Answers for:Pages 111-113 (#1-#8) ALL, #10, #12, #14, (#26-#31) ALL, (#40-#52) ALL
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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.
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• postulate
• axiom
• proof
• theorem
• deductive argument
• paragraph proof
• informal proof
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Fill in the blanks in your handout with the above information
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Fill in the blanks in your handout with the above information
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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.
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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.
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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
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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
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Fill in the blanks in your handout with the above information
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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.
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Don’t forget to study for your QUIZ
tomorrow.. Over 2-1, 2-2, 2-3, & 2-5.
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HW:Pages 130-132 (#1-#13) ALL,
(#16-#28) Evens, (#34-#41) ALL
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