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Circles - Basic

Total questions: 40

Worksheet time: 2hrs 31mins

Name
Class
Date
1.
How many total degrees make a circle?
a)
360
b)
316
c)
90
d)
450
2.
When the distance from one point to the next on the circle is exactly 180o (half of a circle).
a)
Minor Arc
b)
Major Arc
c)
Semi-Circle
d)
Central Angle
3.

A segment with 2 endpoints on the circle but does not necessarily go through the center.

a)

Chord

b)

Diameter

c)

Radius

d)

Inscribed Angle

4.
A chord that passes through the center of the circle is a ________.
a)
chord
b)
diameter
c)
radius
d)
tangent
5.

Define "radius"

a)

The measurement from the center of a circle to an edge of the circle.

b)

The measurement around the circle

c)

The measurement from and edge of the circle to another edge through the center

d)

A line perpendicular to the diameter of the circle

6.

What is the mathematical name given for the line OA?

a)

Diameter

b)

Radius

c)

Tangent

d)

Chord

7.

What is the mathematical name given for the line AB?

a)

Radius

b)

Diamter

c)

Tangent

d)

Chord

8.
What is the measure of ∠PTQ?
a)
100°
b)
140°
c)
180°
d)
120°
9.
Solve for the missing angle.
a)
45o
b)
90o
c)
22.5o
d)
128o
10.
Name a minor arc
a)
AD
b)
ADB
c)
AB
d)
CD
11.
Use chords to solve for x
a)
x = 35o
b)
x = 50o
c)
x = 70o
d)
x = 140o
12.

Which segment is not a radius?

a)

CA

b)

CB

c)

CD

d)

LM

13.
What is the value of x?
a)
x = 160
b)
x = 40
c)
x = 80
d)
x = 360
14.
What is segment PQ?
a)
diameter
b)
radius
c)
tangent
d)
chord
15.
What is segment AB?
a)
diameter
b)
radius
c)
tangent
d)
chord
16.
What is O?
a)
diameter
b)
radius
c)
center
d)
chord
17.
Given a circle with a diameter of 10 m, what is the radius?
a)
10 m
b)
5 m
c)
20 m
d)
15 m
18.
What do we call the red line?
a)
Chord
b)
Arc
c)
Diameter
d)
Segment
19.

What is point "A" called?

a)

Center

b)

Line

c)

Radius

d)

Diameter

20.

What is the measure of angle of a quarter?

a)

45

b)

90

c)

180

d)

270

21.

Which of the following names a diameter?

a)

AC‾\overline{AC}

b)

DB‾\overline{DB}

c)

AB‾\overline{AB}

d)

BC‾\overline{BC}

22.

Which of the following names a radius?

a)

AC‾\overline{AC}

b)

DB‾\overline{DB}

c)

DC‾\overline{DC}

d)

Arc BC

e)

Arc ABC

23.
What is the part of the circle highlighted in red called?
a)
semi-circle arc
b)
major arc
c)
minor arc
d)
sector
24.
What is the part of the circle highlighted in red called?
a)
semi-circle arc
b)
major arc
c)
minor arc
d)
sector
25.

A chord is a segment that connects ___________

a)

the center to the endpoint

b)

to one point outside the circle

c)

a central angle

d)

2 points on the circle

26.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
27.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
28.
Which of the following is a radius of the circle?
a)
DA
b)
GE
c)
HI
d)
FG
29.
Find the radius of a circle who's diameter is 40 ft.
a)
40ft
b)
80ft
c)
20ft
d)
45ft
30.
If the diameter of a circle is 10 cm, the radius is 5 cm.
a)
TRUE
b)
FALSE
31.
If the radius of a circle is 7 m, the diameter is 3.5 m.
a)
TRUE
b)
FALSE
32.
The distance halfway across the circle is called the...
a)
radius
b)
diameter
c)
circumference
d)
area
33.
The circumference of a circle is
a)
The measurement from an edge of a circle to another edge.
b)
The measurement around the circle
c)
The measurement from an edge of a circle to another edge going through the center
d)
The measurement from the center of the circle to an edge of the circle
34.
What is AB?
a)
diameter
b)
center
c)
circumference
d)
radius
35.
What is CB?
a)
diameter
b)
center
c)
circumference
d)
radius
36.
What is C?
a)
diameter
b)
center
c)
circumference
d)
radius
37.

The distance from the center to the edge of the circle.

a)

Diameter

b)

Center

c)

Radius

d)

Tangent

38.

A given point directly in the middle of a circle.

a)

Radius

b)

Diameter

c)

Center

d)

Point

39.

The set of all points in a plane at the same distance from a given point (the center) is defined as....

a)

Parallelogram

b)

Rhombus

c)

Circle

d)

Square

40.

Two points on a circle and the continuous part of the circle between those points is called...

a)

Circumference

b)

Arc

c)

Tangent

d)

Secant

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