stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Duplicate of 7th Grade Geometry: Circles - Problems & Formulas Flashcards | StudBud
Explore
/
Duplicate of 7th Grade Geometry: Circles - Problems & Formulas
Duplicate of 7th Grade Geometry: Circles - Problems & Formulas
15 terms
·
StudBud Administration
·
34 plays
Diameter, circumference, and area problems with possible formula choices.
Flashcards
15 cards
F
Practice quiz
P
Host live
L
Questions
15
Answers
1
Find the circumference of the circle. Choose a formula.
C = πd
C = 2πr
A = πr2
d = 2r
2
The distance around a meteor crater is 9,327 ft. Find the diameter. Choose a formula.
A = πr2
C = 2πr
C = πd
d = 2r
3
How much fencing is required to enclose a circular pool whose radius 8ft. Choose a formula.
A = πr2
d = 2r
C = πd
C = 2πr
4
The distance around a circle is 314 in. What is the diameter? Use 3.14 for π. Choose a formula.
A = πr2
C = πd
C = 2πr
d = 2r
5
Which is the following is a radius?
AB
BA
PA
APB
6
Name the diameter of the circle.
RPQ
SP
QR
PR
7
A water sprinkler sends out water in a circular pattern. How large is the watered area ?
C = 2πr
A = πr2
C = πd
d = 2r
8
What is the area of the circle with a radius of 15 inches? Choose a formula.
C = 2πr
C = πd
d = 2r
A = πr2
9
The length of the diameter of a circle is 10 cm. Find the radius. Choose a formula.
C = πd
d =2r
A = πr2
C = 2πr
10
If the radius is 8, what is the diameter? Choose a formula.
A = πr2
C = πd
C = 2πr
d = 2r
11
The radius of a circle is 10. 3x - 8 is the diameter. Solve for x. Choose a formula.
A = πr2
d = 2 r
C = 2πr
C = πd
12
If the radius is 2 cm, what is the diameter?
6.28 cm
1 cm
4 cm
3.14 cm
13
Find the circumference of the circle. Choose a formula.
d = 2r
A = πr2
C = 2πr
C = πd
14
If 25 mi is the radius, what is the circumference of the circle? Choose a formula.
d = 2r
C = πd
C = 2πr
A = πr2
15
The school is planting grass on the interior of the track. Find the amount of seed needed.
C = 2πr
C = πd
A = πr2
d= 2r
