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Mathematics 9 Online
OpenStudy (gabbyalicorn):

What is the exact circumference of a circle with a radius of 17 millimeters? A. 17π millimeters B. 34π millimeters C. 68π millimeters D. 8.5π millimeters i got 24 mm by doing 2x pi x 17 what am i doing wrong

OpenStudy (gabbyalicorn):

@triciaal

OpenStudy (gabbyalicorn):

@geerky42

geerky42 (geerky42):

\[\Large C = 2\pi r\]

geerky42 (geerky42):

sorry didn't see your answer

OpenStudy (gabbyalicorn):

17 x 2 = 24

geerky42 (geerky42):

none. check again.

geerky42 (geerky42):

\[17 \times2 ~~~=~~~ 17+17\]

OpenStudy (gabbyalicorn):

oh darn i miscalculated :/

geerky42 (geerky42):

\(7\times2 = 14\), so you have to add 1 to ten digit

geerky42 (geerky42):

yep

OpenStudy (gabbyalicorn):

its 34

geerky42 (geerky42):

So you know the answer now.

geerky42 (geerky42):

yeah.

OpenStudy (gabbyalicorn):

thank you :)

geerky42 (geerky42):

welcome

OpenStudy (triciaal):

2 * 17 = 34 not 24

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