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Area and Circumfrence of a circle

Total questions: 10

Worksheet time: 41mins

Name
Class
Date
1.

What is the formula for finding the area of a circle?

a)

A = π·d

b)

C = 2·π·r

c)

A = π·r2

d)

C = π·d

2.

What is the formula for finding the perimeter of a circle

a)

2πr

b)

π

c)

π r ^2

d)

π d^5

3.

What does A represent

a)

Area

b)

Radius

c)

Pi

d)

Diameter

4.

What does r represent

a)

circumference

b)

radius

c)

diameter

d)

squared

5.

What is the radius of a circle?

a)

It is a straight line from the center to the circumference of a circle or sphere

b)

a line through the center of a circle

c)

the amount of space inside of the circle

d)

the distance around a circle

6.

What is the area of a circle?

a)

halfway through a circle

b)

a line through the center of a circle

c)

the amount of space inside of the circle

d)

the distance around a circle

7.

What number does π represent?

a)

4.13

b)

3.41

c)

pie

d)

3.14

8.

What is the symbol for pi?

a)

#

b)

π

c)

&

d)

%

9.
What formula is used to find the distance around a circle?
a)
Area
b)
Surface area
c)
Circumference
d)
Volume
10.
What formula is used to find the space 
"inside" a flat object?
a)
Circumference 
b)
Surface Area
c)
Area
d)
Volume