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7 - 8.3 Activity
Test Description: 8.3 Activity
Instructions: Answer all questions to get your test result.
1) Find the area of a circle with a radius of 5.
A
15.7
B
31.4
C
19.6
D
78.5
2) Find the area of a circle with a radius of 50.
A
3140
B
7850
C
1570
D
1960
3) Find the area of a circle with a radius of 21.
A
65.9
B
131.88
C
1384.74
D
1519.76
4) Find the area of a circle with a diameter of 40.
A
1133.54
B
1256
C
5024
D
1265
5) Find the area of a circle with a diameter of 7.
A
21.98
B
47.5
C
38.5
D
153.9
6) Find the area of a circle with a diameter of 35.
A
3468.5
B
3846.5
C
629.5
D
962.5
7) Find the area of a semicircle with a diameter of 20.
A
1256
B
314
C
157
D
62.8
8) Find the area of a semicircle with a diameter of 16.
A
50.24
B
100.48
C
200.96
D
401.92
9) Find the area of a semicircle with a radius of 21.
A
2769.48
B
1384.74
C
693
D
542
10) Find the area of a semicircle with a radius of 12.
A
452.16
B
226.08
C
128.5
D
75.36
*select an answer for all questions
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