Unit 4: Topic B Lesson
Presentation
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Mathematics
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4th Grade
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Practice Problem
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Easy
+1
Standards-aligned
Arnav Jain
Used 1+ times
FREE Resource
19 Slides • 21 Questions
1
2
3
Multiple Choice
Which of the following tools is commonly used to measure angles in degrees?
Protractor
Ruler
Compass
Thermometer
4
Open Ended
Why is it important to understand how to measure angles and determine how much of a circle an angle covers?
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6
Open Ended
Look at four diagrams: - Two rays sharing a vertex, forming a small angle. - Two rays sharing a vertex, forming a large angle. - Two rays forming a straight line. - Two rays not sharing a vertex. Signal your choice and explain your reasoning. What makes one diagram different from the others?
7
8
Multiple Choice
According to the definition provided, what is required for two rays to form an angle?
They must be parallel
They must share a common endpoint
They must be perpendicular
They must form a straight line
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10
Multiple Choice
Which of the following statements best describes how we measure how open an angle is?
By using centimeters
By using degrees
By using radians
By using inches
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12
Fill in the Blanks
Type answer...
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14
15
Open Ended
How does the concept of measuring angles in degrees relate to dividing a circle into equal parts?
16
Fill in the Blanks
Type answer...
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18
Open Ended
How does the fraction of a circle’s circumference between two rays relate to the angle’s measure in degrees?
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20
Open Ended
What does it mean when an angle measures 180 degrees or 90 degrees? What do these angles look like?
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22
Multiple Choice
Which of the following are correct ways to find the degree measure of an angle that cuts out a fraction of a circle?
Multiply the fraction by 360
Divide 360 by the fraction
Multiply the fraction by the radius
Multiply the fraction by the diameter
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24
Fill in the Blanks
Type answer...
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26
Multiple Choice
A circle has a center point O. Ray OA points to the right edge of the circle. Ray OB points straight up to the top edge. What fraction of the circle’s circumference is between rays OA and OB?
1/4
1/2
1/8
1/6
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28
Multiple Choice
An angle has its vertex at the center of a circle. Its rays “cut out” 1 / 6 of the circle’s circumference. What is the measure of this angle in degrees?
60
30
90
45
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30
Open Ended
Explain what you notice about the shape of the angle formed when the arc between two rays from the center of a circle is half the circle.
31
Multiple Choice
What is the measure of the angle formed by two rays from the center of a circle, where the arc between them is half the circle?
180 degrees
90 degrees
120 degrees
360 degrees
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33
Fill in the Blanks
Type answer...
34
Multiple Choice
Which of the following best describes an arc in a circle?
The part of a circle’s edge between two points, often 'cut out' by the rays of an angle.
The center point of a circle.
A straight line passing through the circle.
The total circumference of the circle.
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37
Multiple Choice
If an angle 'cuts out' 1/10 of a circle, what is its measure in degrees?
36 degrees
10 degrees
90 degrees
180 degrees
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Multiple Choice
By the end of this lesson, what should you be able to figure out about angles and circles?
How to measure angles using degrees and determine how much of a circle an angle covers
How to draw circles perfectly
How to find the area of a circle
How to convert degrees to radians
40
Open Ended
What is one way you can use degrees to measure angles in a circle?
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