Circles — Test Answers

25 verified answers
1
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In circle cap o , what is m angle MAJ ?

A
250 degrees
B
55 degrees
C
125 degrees
D
50 degrees
2
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What is the approximate length of arc QR ? Round to the nearest tenth of a centimeter.

A
21 point 5 centimeters
B
43 point 0 centimeters
C
9 point 9 centimeters
D
19 point 9 centimeters
3

What is the length of segment NP ?

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

What is the perimeter of kite OBDE ?

A
60 units
B
27 units
C
17 units
D
23 units
5

Which of the following are in the correct order from least to greatest?

A
38 degrees , 80 degrees , pi over 4 , 7 pi over 6 , 2 pi
B
2 pi , 7 pi over 6 , 80 degrees , pi over 4 , 38 degrees
C
38 degrees , pi over 4 , 80 degrees , 7 pi over 6 , 2 pi
D
2 pi , 38 degrees , 80 degrees , pi over 4 , 7 pi over 6
6

The angle measures associated with which set of ordered pairs share the same reference angle?

A
open paren 1 half comma negative the fraction with numerator square root of 3 and denominator 2 close paren , open paren negative the fraction with numerator square root of 3 and denominator 2 comma 1 half close paren
B
open paren negative the fraction with numerator square root of 3 and denominator 2 comma negative 1 half close paren , open paren negative 1 half comma negative the fraction with numerator square root of 3 and denominator 2 close paren
C
open paren the fraction with numerator square root of 3 and denominator 2 comma 1 half close paren , open paren 1 half comma the fraction with numerator square root of 3 and denominator 2 close paren
D
open paren negative 1 half comma negative the fraction with numerator square root of 3 and denominator 2 close paren , open paren 1 half comma the fraction with numerator square root of 3 and denominator 2 close paren
8

Consider a circle whose equation is x squared plus y squared minus 2 x minus 8 is equal to 0 Which statements are true? Choose three correct answers.

A
The radius of this circle is the same as the radius of the circle whose equation is x squared plus y squared is equal to 9 .
B
The center of the circle lies on the y -axis.
C
The center of the circle lies on the x -axis.
D
The standard form of the equation is open paren x minus 1 close paren squared plus y squared is equal to 3 .
E
The radius of the circle is 3 units.
9

Which equation represents the circle described? The radius is 2 units. The center is the same as the center of a circle whose equation is x squared plus y squared minus 8 x minus 6 y plus 24 is equal to 0

A
open paren x minus 4 close paren squared plus open paren y minus 3 close paren squared is equal to 2
B
open paren x plus 4 close paren squared plus open paren y plus 3 close paren squared is equal to 2 squared
C
open paren x plus 4 close paren squared plus open paren y plus 3 close paren squared is equal to 2
D
open paren x minus 4 close paren squared plus open paren y minus 3 close paren squared is equal to 2 squared
12

Which segments are congruent?

A
line segment FG and line segment EH
B
line segment EF and line segment GF
C
line segment GH and line segment FE
D
line segment EH and line segment EF
13

What is the measure of overarc PQ ?

A
66 degrees
B
33 degrees
C
24 degrees
D
48 degrees
14

Which statements about circle cap o are true? Choose three correct answers.

A
angle LMP intercepts a semicircle.
B
The radius of circle cap o is 13 .
C
The diameter of circle cap o is 34 .
D
line segment LP is a diameter of circle cap o .
E
The measure of arc LP is 90 degrees .
16

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

A
18 pi units squared
B
36 pi units squared
C
6 pi units squared
D
9 pi units squared
18

What is the approximate length of minor arc XZ ? Round to the nearest tenth of a meter.

A
1 point 8 meters
B
18 point 8 meters
C
3 point 7 meters
D
15 point 2 meters
20

What is the length of line segment JG ?

A
5 units
B
6 units
C
9 units
D
4 units

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