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Duplicate of 7th Grade Geometry: Circles - Problems & Formulas Flashcards | StudBud
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Duplicate of 7th Grade Geometry: Circles - Problems & Formulas
Duplicate of 7th Grade Geometry: Circles - Problems & Formulas
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Diameter, circumference, and area problems with possible formula choices.
Flashcards
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Questions
14
Answers
1
The school is planting grass on the interior of the track. Choose a formula.
d= 2r
C = πd
C = 2πr
A = πr2
2
Find the circumference for a watch that has a diameter of 2.5 in.
C= 5 in
C= 6.75 in
C= 3.14 in
C= 7.85 in
3
The distance around a circle is 314 in. What is the diameter? Choose a formula.
C = 2πr
d = 2r
C = πd
A = πr2
4
How much fencing is required to enclose a circular pool whose radius 8ft. Choose a formula.
C = 2πr
A = πr2
d = 2r
C = πd
5
Choose a formula to find the circumference
d = 2r
C = πd
C = 2πr
A = πr2
6
Find the circumference of the circle. Choose a formula.
C = 2πr
d = 2r
A = πr2
C = πd
7
A water sprinkler moves water in a circular pattern. Which formula tells the water coverage?
C = 2πr
C = πd
A = πr2
d = 2r
8
If the radius is 8, what is the diameter? Choose a formula.
d = 2r
C = 2πr
C = πd
A = πr2
9
The distance around a meteor crater is 9,327 ft. Find the diameter. Choose a formula.
A = πr2
d = 2r
C = πd
C = 2πr
10
If the radius is 2 cm, what is the diameter?
1 cm
6.28 cm
3.14 cm
4 cm
11
Name the diameter of the circle.
PR
QR
SP
RPQ
12
The length of the diameter of a circle is 10 cm. Find the radius. Choose a formula.
d =2r
A = πr2
C = πd
C = 2πr
13
Which is a radius?
BA
AB
PA
APB
14
If 25 mi is the radius, what is the circumference of the circle? Choose a formula.
C = 2πr
d = 2r
A = πr2
C = πd
