10439181
Description
Quiz by Brodie McMeowface, updated more than 1 year ago
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Created by Brodie McMeowface
over 6 years ago
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Question 1
Answer
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The angle at the circumference is half that at the center
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The angle at the circumference is double that at the center
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Angles in isosceles triangles are equal
Question 2
Question
Angle x = [blank_start]100[blank_end] because angles at the center of a circle [blank_start]are double that at the circumference[blank_end].
Also y = [blank_start]80[blank_end] [blank_start]for the same reason[blank_end].
Image:
Image (binary/octet-stream)
Answer
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100
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25
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200
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are double that at the circumference
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are half that at the circumference
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are the same at the circumference
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80
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40
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160
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for the same reason
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because angles in a cyclic quadrilateral
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because angles in a triangle add to 180
Question 3
Answer
- True
- False
Question 4
Question
d = 80 and a = (d/4) * 6
Find and lable all angles in the image below:
Image:
Image (binary/octet-stream)
Answer
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80
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120
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60
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100
Question 5
Question
What was the reason for your previous answers to this image?
Image:
Image (binary/octet-stream)
Answer
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Angles in a cyclic quadrilateral add to 180
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angles in a quadrilateral add to 360
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Angles in the same segment are equal
Question 6
Question
O is the centre of a circle
Angle STU = [blank_start]90[blank_end],
Angle z = [blank_start]59[blank_end],
because [blank_start]the angle in a semicircle is 90[blank_end]
Image:
Image (binary/octet-stream)
Answer
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90
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45
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60
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59
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89
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104
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the angle in a semicircle is 90
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angles in a triangle add to 180
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Half a cyclic quadrilateral is 90
Question 7
Question
I have a circle with a tangent touching the diameter, Quinlan says the angle between the two is 270 degrees, is he right?
Answer
- True
- False
Question 8
Question
What was the actual angle?
Answer
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90
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180
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45
Question 9
Answer
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90
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110
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70
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80
Question 10
Question
Finally, which of the below are real circle theorems?
Answer
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The angle at the centre is twice the angle at the circumference
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Angles in same segment are equal
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The angle in a semicircle is 90 degrees
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Opposite angles in a cyclic quarilateral add to 180
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