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OpenStudy (yinshy):
Find the exact circumference. d = 19.7 cm A. 9.85 cm B. 19.7 cm C. 9.85π cm D. 19.7π cm
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OpenStudy (yinshy):
@batmano3
jhonyy9 (jhonyy9):
circumference = 2pir or pid where d is diameter
OpenStudy (yinshy):
so C
jhonyy9 (jhonyy9):
not is 2pir or pi*d what mean 3,14*d
OpenStudy (yinshy):
A?
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jhonyy9 (jhonyy9):
sorry is C just i not have saw the pi next 19,7 sorry
jhonyy9 (jhonyy9):
not is C is D bc there is diameter time pi so diameter time 3,14
OpenStudy (yinshy):
So its D but how can you right it in a epuation? @jhonyy9
jhonyy9 (jhonyy9):
circumference = 2pir = pid circumference = 3,14*19,7
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