WorksheetsPi Day 2020
Total questions: 16
Worksheet time: 55mins
Name
Class
Date
1.
How many digits are in pi?
a)
10 trillion
b)
5 billion
c)
infinite
d)
a lot
2.
What is the "formal" definition of pi?
a)
22/7
b)
3.1415926
c)
the ratio of a circle's circumference to its diameter
d)
the surface area of a sphere of diameter 22/7
3.
What day is Pi Day celebrated on?
a)
March 31
b)
March 15
c)
March 14
4.
What famous scientist was born on Pi Day in 1879?
a)
Archimedes
b)
Einstein
c)
Galileo
d)
Newton
5.
What is the formula for circumference of a circle given the diameter?
a)
C = π r
b)
C = 2 π r
c)
C = π d
d)
C = 2 π d
6.
If the area of a circle is 25 π in² , then the diameter is?
a)
10 in
b)
5 in
c)
25 in
d)
pi in
7.
The _____ is the distance from the center to any point on the circle.
a)
diameter
b)
radius
c)
π
d)
center
8.
A _____ is half of a circle.
a)
circumference
b)
pi
c)
semicircle
d)
composite figure
9.
If you are given the diameter, how can you calculate the radius?
a)
Multiply the diameter by 2
b)
Divide the diameter by 2
c)
Add 2 to the diameter
d)
Subtract 2 from the diameter
10.
Which segment is the diameter?
a)
AC
b)
BD
c)
LM
d)
CE
11.
Which segment is a radius?
a)
LM
b)
DC
c)
BD
d)
ML
12.
What is the name for the distance around a circle?
a)
Diameter
b)
Radius
c)
Circumference
d)
Chord
13.
A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's approximate circumference?
a)
3 m
b)
9.42 m
c)
12 m
d)
18.84 m
14.
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
15.
What is the radius of this circle?
a)
12cm
b)
6cm
c)
24cm
d)
3cm
16.
Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet?
a)
A = 30.15
b)
A = 25.12
c)
A = 56.12
d)
A = 16.5
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