Circle Properties And Coordinate Geometry I

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| By Yonghs

Yonghs

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1/10 Questions
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About This Quiz

Recall:
tangent perpendicular to radius.
tangents meet at a point equidistant from circumference. (isos. Triangle)
alt seg thm
angle at ctr = 2 angle at circumf. . .
y-axis is x=0. So, lines parallel to y axis are x =? . . .
x-axis is y=0.
parallel lines have same gradient.
product of gradient of perpendicular lines is -1.

Circle Properties And Coordinate Geometry I - Quiz

2.
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Correct Answer

A. D

Explanation

DAB=68 (alt seg thm)
DCB=180-68 (opp angles of cyclic quad)

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3.
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Correct Answer

A. A

Explanation

DAB=68(alt seg thm)
BAE=64(alt seg thm)

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1
4.
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Correct Answer

A. C

Explanation

BAE=ABE=64(alt seg thm)
AEB=180-64-64(angle sum of triangle)

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5.
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Correct Answer

A. B

Explanation

AC=AB (isos triangle)
ABC=(180-60)/2

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6.
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Correct Answer

A. D

Explanation

pythagoras'
sqrt (8^2+6^2)
13-5=8
6-0=6

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7.
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Correct Answer

A. D

Explanation

(2+12)/2=7
(-5+13)/2=4

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8.
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Correct Answer

A. D
9.
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Correct Answer

A. A

Explanation

y=3x+c
5=3(1)+c
c=2

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10.
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Correct Answer

A. D

Explanation

grad = 2
perpendicular grad = -1/2
y= -1/2 x + c
-1= -1/2 (-4) + c
c = -1 - 2

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Mar 21, 2023

Quiz Edited by
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Jun 06, 2010

Quiz Created by
Yonghs

Circle Properties And Coordinate Geometry I

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