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Mathematics 16 Online
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

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?

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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