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318 Circles, review, Pi and Pi Day Trivia! Flashcards | StudBud
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318 Circles, review, Pi and Pi Day Trivia!
318 Circles, review, Pi and Pi Day Trivia!
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Pi Day +
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Answers
1
Select All the points that are on the graph. (click all answers)
(-3,1)
(-2,-2)
(3,1)
(-4,4)
2
Pi = 3.14 exactly
False
True
3
Proportions, solve for x.
x=40
x=35
x=20
x 45
4
What is pi ?
A circle's circumference divided by its diameter.
A square's cicumference
A circle's perimeter
A sqare's perimeter
5
Subtract the integers.
8
–8
–4
4
6
The area of a circle is
π x d
π x r2
L x W x H
π x r2 x h
7
Find the circumference, refer to the formula.
7. 85 m
25. 7 cm
15. 7 cm
7.85 cm
8
Multiply the fractions and reduce.
5/81
13 1/5
9
5
9
You find the area of a circle by...
A = 3.14 x radius
Guessing
A = 3.14 x radius x radius
A = 3.14 x diameter
10
Multiply Fractions
NH
12/36
2/5
1/3
11
Add the integers.
7
5
-7
-5
12
This operation "undoes" division.
Addition
Order of Operations
Multiplication
Subtraction
13
First 10 numbers of pi are ?
3.142599583
3.141398693
6.282615843
3.141592653
14
This operation "undoes" addition.
Addition
Subtraction
Order of Operations
Division
15
Pi is irrational. What does this mean?
It goes on with a pattern.
It was Ralph Waldo Emerson’s favorite number
It eventually ends.
It goes on with no pattern.
16
Multiply the Fractions
3/12
1/4
1/3
9/4
17
Add the Integers
307
1
-1
-307
18
Add the fractions.
1 1/5
7/5
8/5
9/5
19
Subtract these fractions.
12/10
6/20
6/10 or 3/5
12/20
20
How do you multiply fractions?
Cross multiply
Multiply the numerators and then quit
Keep, change, flip
Multiply across the top and then the bottom
21
Multiply the Integers
-11
24
-5
-24
22
Proportions, solve for x
X45
X=50
X=15
X=30
23
Find the area of the circle.
157 square cm
25 square cm
78.5 square cm
1962.5 square cm
24
Divide the integers
6
-4
-18
4
25
A pair of numbers used to locate points on the coordinate plane is called...
x-coordinate
Ordered pair
y-coordinate
Origin
26
How long is pi ?
10 numbers
∞ numbers
1000 numbers
100 numbers
27
True or False: Pi is the most recognized mathematical constant in the world.
False
True
28
True or False: GPS uses pi to calculate positions on earth.
False
True
29
Subtract the integers.
1
–9
9
–1
30
The eleventh digit of pi is
3
5
7
1
31
This operation "undoes" multiplicaiton.
Division
Subtraction
Addition
Order of Operations
32
In the first 30 places of
pi’
s decimal expansion, which digit is completely missing?
2
8
7
0
33
Pi equals...
3.14159...
3.14888...
3.14897...
3.14239...
34
Add these fractions.
3/14
5/7
3/7
5/14
35
Are these ratios equivalent?
YES
NO
It depends
Only on the third Monday after a full moon.
36
What is the area of this circle?
16
12.56
50.24
6.28
37
Divide the integers
-63
-7
63
7
38
How many quadrants are on the graph?
2
1
4
3
39
Multiply the Integers
0
16
-16
-8
40
Pi is the 16th letter in the _____ alphabet
English
Russian
Egyptian
Greek
41
WHAT IS THE AREA OF THIS CIRCLE?
A=12.52CM2
A=22.52CM2
A=16.24CM2
A=14.58CM2
42
Which is larger, the
AREA
of this circle or its
CIRCUMFERENCE
?
No way to tell.
The circumference
They're the same (except for the units).
The area is.
43
Multiply the Integers
-24
-5
24
-11
44
Find the circumference.
37. 68
37.68 cm
18.84 cm
36 cm
45
Multiply the Integers
-13
-40
-3
40
46
What is the circuference ?
The distance across a circle
The distance around a circle
Any shape's perimeter
The distance around a square
47
Add these integers...
-2
-16
2
16
48
Add the fractions.
6/14
6/7
8/7
4/7
49
Opposite operations are also called?
Reverse
Backward
Upside-Down
Inverse
50
Which of the following is NOT in the first 10 digits of Pi ?
9
5
1
7
51
When you multiply or divide integers
it's just like adding
If the signs are the same the answer is positive
The answer is always positive
The answer is always negative
52
Which points are in quadrants III and IV?
A and D
C and D
B and D
B, and A
53
Writing Ratios
D
C
B
A
54
Order of operations
E P M D A S
K E M D A S
P E M D A S
S E M D A P
55
Multiply the Integers
-4
16
-8
-16
56
Add the integers.
10
-10
-24
24
57
Subtract the fractions.
5/8
6/8 or 3/4
1/2
2/8 or 1/4
58
Enjoy your vacation, see you after spring break!
no
Yes
59
Multiply the Integers
-8
16
-16
-4
