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Circles Vocab and Angles

Total questions: 28

Worksheet time: 22mins

Name
Class
Date
1.
What is the diameter?
a)
5 in
b)
10 in
c)
3.14 in
d)
15.84 in
2.
The diameter of a circle is ______________________
a)
The measurement around the circle.
b)
The distance from an edge to another edge.
c)
The distance from the center to an edge of a circle
d)
The distance from an edge to another edge through the center. 
3.
A segment that has one endpoint at the center and the other endpoint on the circle is the __________.
a)
diameter
b)
chord
c)
radius
d)
secant
4.

The "perimeter" of a circle is known as the...

a)

radius

b)

diameter

c)

circumference

d)

area

5.
Which represents a minor arc?
a)
BC
b)
BCD
c)
AB
d)
AD
6.
Half a circle or an arc that is 180 degrees is know as...
a)
Major Arc
b)
Minor arc
c)
Semicircle
d)
Circle
7.
A line segment on the interior of a circle with both endpoints on the circle
a)
Radius
b)
Diameter
c)
Secant
d)
Chord
8.
A line that touches the circle at exactly one point.
a)
Chord
b)
Secant
c)
Tangent
d)
Semicircle
9.
The shorter of the two arcs between two points on a circle.
a)
Major arc
b)
Minor arc
c)
Arc
d)
Circles
10.
The longer of the two arcs between two points on a circle.
a)
Major arc
b)
Minor arc
c)
Arc
d)
Circles
11.
An angle in a circle with the vertex on the circle itself
a)
Angle
b)
Central angle
c)
Inscribed angle
d)
Chord
12.
An angle in a circle with vertex on the center of the circle.
a)
Central angle
b)
Angle
c)
Inscribed angle
d)
Circle
13.

The sum of the measures of all the central angles in a circle is...

a)

0 degrees

b)

90 degrees

c)

180 degrees

d)

360 degrees

14.
How do we name a minor arc?
a)
two endpoints
b)
two endpoints and the center
c)
three endpoints
d)
three endpoints and the center
15.
How do we name a major arc?
a)
two endpoints
b)
two endpoints and the center
c)
three endpoints
d)
three endpoints and the center
16.
A line that passes through a circle at two points.
a)
Secant
b)
Tangent
c)
Chord
d)
Radius
17.
What is the radius?
a)
18
b)
72
c)
38
d)
14
18.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
19.
Which of the following names a radius?
a)
segment AC
b)
segment DB
c)
segment AB
d)
segement BC
20.
Which of the following names a diameter?
a)
segment AC
b)
segment DB
c)
segment AB
d)
segment BC
21.
What is the part of the circle highlighted in red called?
a)
semi-circle arc
b)
major arc
c)
minor arc
d)
sector
22.
What is the part of the circle highlighted in red called?
a)
semi-circle arc
b)
major arc
c)
minor arc
d)
sector
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.
An angle whose vertex lies on the circle and whose sides are chords of the circle
a)
inscribed angle 
b)
central angle
c)
arc
d)
radius
25.
A line that intersects a circle at exactly one point
a)
secant
b)
circle
c)
chord
d)
tangent
26.
An angle whose vertex is the center of a circle
a)
central angle
b)
inscribed angle
c)
minor arc
d)
major arc
27.
What best describes segment AB?
a)
chord
b)
secant
c)
tangent
d)
diameter
28.
A line that passes through the circle.
a)
chord
b)
radius
c)
secant
d)
tangent