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7 - 8.1 Activity
Test Description: 8.1 Activity
Instructions: Answer all questions to get your test result.
1) Find the circumference of a circle with a radius of 3.
A
7.71
B
18.84
C
9.42
D
4.71
2) Find the circumference of a circle with a radius of 14.
A
89.24
B
35.98
C
87.92
D
43.96
3) Find the circumference of a circle with a radius of 5.
A
15.7
B
78.5
C
12.85
D
31.4
4) Find the circumference of a circle with a diameter of 3.
A
18.84
B
7.71
C
9.42
D
4.71
5) Find the circumference of a circle with a diameter of 14.
A
35.98
B
87.92
C
89.24
D
43.96
6) Find the circumference of a circle with a diameter of 5.
A
12.85
B
15.7
C
31.4
D
78.5
7) Find the perimeter of a semicircle with a diameter of 22.
A
47.08
B
34.54
C
69.08
D
56.54
8) Find the perimeter of a semicircle with a radius of 4.
A
12.56
B
16.56
C
25.12
D
21.12
9) Find the perimeter of a semicircle with a diameter of 10.
A
41.4
B
25.7
C
31.4
D
15.7
10) Find the diameter of a circle with a radius of 15.
A
30
B
7.5
C
10
D
15
11) Find the diameter of a circle with a radius of 2.
A
8
B
2
C
4
D
6
12) Find the diameter of a circle with a radius of 16.
A
64
B
8
C
4
D
32
13) Find the radius of a circle with a diameter of 10.
A
10
B
5
C
40
D
20
14) Find the radius of a circle with a diameter of 24.
A
12
B
24
C
36
D
48
15) Find the radius of a circle with a diameter of 7.
A
28
B
16
C
14
D
7
*select an answer for all questions
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