Homework Answers
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Transcript of Homework Answers
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Homework AnswersStandardized Test Prep P. 26 #s 44-56 all, omit #4744) B45) G46) D48) always49) always50) never51) always52) a) yes b) no c) no d) yes53) 1454) 6.555) -356) 12.8
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1-4 Measuring Angles
Objective: To find and compare the measures of angles
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Warm up: True/False? The angle on the right is larger than the
angle on the left?
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Angles• Formed by two rays w/ the same
endpoint• Name it:
• By the vertex (only when there is only 1 angle drawn.
• symbol and 3 letters with the vertex in the middle.
• symbol and a number (if provided)
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(a)
(b)
(c)
Problem 1
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Problem 1-Got it?
(a) What are two other names for 1?
(b)What are two other names for KML?
(c)Would it be correct to name any of the angles m? Explain.
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Types of Angles
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Protractor Postulate
Consider OB and a point A on one side of OB. Every ray of the form OA can be paired one to one with a real number from 0 to 180.
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How do you suppose you find the measure of COD?
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Problem 2
What are the measures of <LKN, <JKL, and <JKN? Classify each angle as acute, right, obtuse, or straight.
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<LKN = __________________________ and is ____________.<JKL = __________________________ and is ____________.<JKN = __________________________ and is ____________.
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Problem 2- Got it ?
What are the measures of <LKH, <HKN, and <MKH? Classify each angle as acute, right, obtuse, or straight.
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<LKH = __________________________ and is ____________.<HKN = __________________________ and is ____________.<MKH = __________________________ and is ____________.
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Homework1-4 P. 31
#s 1- 3, & 6-17 all
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Solutions
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1-4 Measuring Angles Continued
Objective: To find and compare the measures of angles
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Warm up:
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Congruent Angles• Angles with the same measure
If B
If the measures of the angles are the same, then the angles are congruent.
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Note: The arcs indicates if angles are equal. It does not matter how big the arcs are.
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Problem 3Synchronized swimmers form angles with their bodies, as shown in the photo. If mGHJ = 90, what is mKLM?
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What do you think you can conclude from this diagram?
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Angle Addition Postulate
If point B is in the interior of ∠AOC, then m AOB + m BOC = m AOC.
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Problem 4If m RQT = 155, what are m RQS and m TQS?
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Problem 4- Got it ?
DEF is a straight angle. What are m DEC and m CEF?
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HomeworkPage 31 18-23, 29-30
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Solutions
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