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Gnoma [55]
3 years ago
10

Estimate the circumference of a circle with a radius of 9cm

Mathematics
1 answer:
Yanka [14]3 years ago
4 0
Circumference = 2 x 3.142 x r
9 = 6.284 x r
9 ÷ 6.284 = r
r = 1.43 cm
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