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