7 - 8.3 Activity Question Preview (ID: 58939)


8.3 Activity. TEACHERS: click here for quick copy question ID numbers.

Find the area of a circle with a radius of 5.
a) 78.5
b) 15.7
c) 31.4
d) 19.6

Find the area of a circle with a radius of 50.
a) 7850
b) 1570
c) 3140
d) 1960

Find the area of a circle with a radius of 21.
a) 1384.74
b) 65.9
c) 1519.76
d) 131.88

Find the area of a circle with a diameter of 40.
a) 1256
b) 1265
c) 1133.54
d) 5024

Find the area of a circle with a diameter of 7.
a) 38.5
b) 153.9
c) 21.98
d) 47.5

Find the area of a circle with a diameter of 35.
a) 962.5
b) 3846.5
c) 629.5
d) 3468.5

Find the area of a semicircle with a diameter of 20.
a) 157
b) 1256
c) 314
d) 62.8

Find the area of a semicircle with a diameter of 16.
a) 100.48
b) 200.96
c) 50.24
d) 401.92

Find the area of a semicircle with a radius of 21.
a) 693
b) 1384.74
c) 2769.48
d) 542

Find the area of a semicircle with a radius of 12.
a) 226.08
b) 452.16
c) 75.36
d) 128.5

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