Posted by makeeda on Saturday, January 16, 2010 at 11:41am.
a circle has a circumference of 110.6mm
find diameter to the nearest tenth
A.35.2mm
b.36.2mm
c.37.2mm
d.38.2mm

math  Ms. Sue, Saturday, January 16, 2010 at 11:58am
C = pi * d

math  makeeda, Saturday, January 16, 2010 at 6:01pm
so it c

math  Ms. Sue, Saturday, January 16, 2010 at 6:40pm
You already know c which is the circumference.
To find the diameter, use this formula:
d = C / pi

math  makeeda, Saturday, January 16, 2010 at 7:33pm
what do you mean i don't get it

math  Ms. Sue, Saturday, January 16, 2010 at 7:37pm
diameter = 110.6 / 3.14
d = ?

math  Ms. Sue, Saturday, January 16, 2010 at 8:22pm
Right.
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