Circles — Test Answers

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1
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The measure of central angle ABC is (π)/(2) radians. What is the area of the shaded sector?

A
9 pi units squared
B
18 pi units squared
C
6 pi units squared
D
36 pi units squared
2
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What is the equation of the directrix of the parabola?

A
x is equal to negative 3
B
y is equal to negative 3
C
x is equal to 3
D
y is equal to 3
4

What is the approximate length of arc QR ? Round to the nearest tenth of a centimeter.

A
43 point 0 centimeters
B
21 point 5 centimeters
C
19 point 9 centimeters
D
9 point 9 centimeters
6

Which segments are congruent?

A
line segment EF and line segment GF
B
line segment EH and line segment EF
C
line segment FG and line segment EH
D
line segment GH and line segment FE
8

In the diagram of circle cap A , what is m angle LMN ?

A
75 degrees
B
120 degrees
C
90 degrees
D
135 degrees
9

What is the measure of overarc EAC ?

A
125 degrees
B
100 degrees
C
280 degrees
D
235 degrees
10

What is the measure of arc ST ?

A
163 degrees
B
112 degrees
C
68 degrees
D
56 degrees
11

What is the measure of overarc PQ ?

A
33 degrees
B
66 degrees
C
48 degrees
D
24 degrees
12

What is the measure of angle cap c ?

A
152 degrees
B
90 degrees
C
38 degrees
D
76 degrees
13

In circle cap c , r is equal to 32 units. What is the area of circle cap c ?

A
32 pi units squared
B
256 pi units squared
C
64 pi units squared
D
1024 pi units squared
14

Which kind of triangle must triangle XYZ be?

A
an isosceles triangle
B
a right triangle
C
a scalene triangle
D
an equilateral triangle
15

What is the measure of arc QR ?

A
128 degrees
B
104 degrees
C
52 degrees
D
26 degrees
16

What is the length of line segment MN ?

A
18 units
B
4 units
C
24 units
D
6 units
18

What is the length of segment NP ?

A
1 unit
B
2 units
C
3 units
D
4 units
19

In circle cap o , what is m angle MAJ ?

A
125 degrees
B
50 degrees
C
250 degrees
D
55 degrees
20

What is m overarc SRT ?

A
274 degrees
B
282 degrees
C
266 degrees
D
258 degrees

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