Free Printable Intro to Circles

1.

Name the pictured part of the circle.

a)

Radius

b)

Central Angle

c)

Sector

d)

Center

e)

Arc

2.

Name the pictured part of the circle.

a)

Radius

b)

Central Angle

c)

Sector

d)

Center

e)

Arc

3.

Name the pictured part of the circle.

a)

Radius

b)

Central Angle

c)

Sector

d)

Center

e)

Arc

4.

Name the pictured part of the circle.

a)

Center

b)

Sector

c)

Radius

d)

Central Angle

e)

Arc

5.

Name the pictured part of the circle.

a)

Diameter

b)

Sector

c)

Radius

d)

Central Angle

e)

Arc

6.

Name the pictured part of the circle.

a)

Diameter

b)

Sector

c)

Radius

d)

Central Angle

e)

Arc

7.

Name the pictured part of the circle.

a)

Diameter

b)

Sector

c)

Radius

d)

Chord

e)

Arc

8.

Name the pictured part of the circle.

a)

Diameter

b)

Sector

c)

Radius

d)

Chord

e)

Semicircle

9.

Which of the following is the formula for the CIRCUMFERENCE of a circle? (Select all that apply)

a)

$2\pi r$

b)

$\pi d$

c)

$2\pi r^2$

d)

$\pi r^2$

10.

Which of the following is the formula for the AREA of a circle?

a)

$2\pi r$

b)

$\pi d$

c)

$2\pi r^2$

d)

$\pi r^2$

11.

What is BD?

a)

Chord

b)

Radius

c)

Secant

d)

Tangent

12.

What is AF?

a)

Chord

b)

Radius

c)

Secant

d)

Tangent

13.

What is A?

a)

Point of Tangency

b)

Radius

c)

Circle

d)

Tangent

14.

What is H?

a)

Point of Tangency

b)

Radius

c)

Circle

d)

Tangent

15.

What is HA?

a)

Point of Tangency

b)

Radius

c)

Circle

d)

Tangent

16.

What is BJ?

a)

Secant

b)

Radius

c)

Chord

d)

Tangent

17.

What is DG?

a)

Secant

b)

Radius

c)

Chord

d)

Tangent

18.

What is arc HF?

a)

major arc

b)

Radius

c)

semicircle

d)

minor arc

19.

What is arc DF?

a)

major arc

b)

Radius

c)

semicircle

d)

minor arc

20.

What is arc HCG?

a)

major arc

b)

Radius

c)

semicircle

d)

minor arc

Intro to Circles

Total questions: 20

Worksheet time: 10mins

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