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yan [13]
3 years ago
5

Find the circumference of a circle whose radius is 15.4cm 

Mathematics
2 answers:
LenaWriter [7]3 years ago
6 0
r=15,4\ cm\\C=2\cdot\ \pi\ \cdot\ r\\C=2\cdot\ \pi\ \cdot\ 15,4\ cm\\C=30,8\ \pi\ cm

\pi\approx\ 3,14

C=30,8\ \cdot\ 3,14\ cm\\C=96,712\ cm


rodikova [14]3 years ago
4 0
Π = 3,14

c = 2.π.r
c = 2.3,14.15,4
c ≈ 96,7
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