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Circles
Test Description: 7.G.4
Instructions: Answer all questions to get your test result.
1) What is the area of a circle with a radius of 7?
A
3.14
B
21.98
C
43.96
D
153.86
2) What is the circumference of a circle with a diameter of 4?
A
50.24
B
3.14(4)
C
3.14(4)(4)
D
3.14(8)
3) What is the area of a circle with a radius of 12?
A
3.14(12)
B
3.14(6)
C
3.14(12)(12)
D
3.14(12)(2)
4) What is the diameter of a circle with a radius of 8?
A
4
B
2
C
16
D
8
5) If a circle has a diameter of 24, what is its radius?
A
24
B
48
C
6
D
12
6) What is the formula for the area of a circle?
A
3.14(r)(2)
B
3.14(r)(r)
C
3.14(3.14)
D
3.14(d)
7) How do you find the circumference of a circle?
A
3.14(d)
B
3.14(r)(r)
C
3.14(r)
D
3.14(d)(d)
8) Find the area of a circle with a radius of 3.
A
9.42
B
28.26
C
3.14
D
18.84
9) What is the diameter if the circumference is 28.26?
A
10
B
7
C
8
D
9
10) What is the diameter if the circumference is 25.12?
A
8
B
1
C
6
D
3
11) A circle has an area of 78.5. What is its radius?
A
10
B
5
C
25
D
15
12) What is the circumference if the radius is 33?
A
3.14(33)
B
3419.46
C
207.24
13) If the circumference of a circle is 37.68, what is its diameter?
A
3.14
B
24
C
12
D
6
14) If the radius is 8, what is the circle's area?
A
200.96
B
50.24
C
25.12
*select an answer for all questions
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