2006-10-11 05:13:55 · 9 answers · asked by crazybrunette1991 2 in Science & Mathematics ➔ Mathematics
15*∏ = 47.12
2006-10-11 05:18:35 · answer #1 · answered by richeboi 2 · 0⤊ 0⤋
The circ. of a circle is 2 times the radius times pi. C = 2r * pi
So just plug in your numbers. Rounding to the nearest hundredth means looking an the thousands place and deciding to move the hundreds number up or not based on the thousandths. But plenty of people have already given you the actual answer.
2006-10-11 05:27:15 · answer #2 · answered by Anonymous · 0⤊ 0⤋
This is like your other question except now you have a diameter and different units. The formula is still the same.
Circumference is just pi (3.141592653...) times diameter.
So you just need to figure:
C = pi * d
C = pi * (15)
C = 3.14159 * 15
C = 47.12385 meters
Now round that to the nearest hundredth:
The circumference is 47.12 meters
2006-10-11 05:24:27 · answer #3 · answered by Puzzling 7 · 0⤊ 0⤋
Circumference =Diameter (pi)
15*3.14=47.1mm
2006-10-11 05:23:17 · answer #4 · answered by deepseaofblankets 5 · 0⤊ 0⤋
Divide 15 in half = 7.5
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Circumference of a circle formula
C = 2πr
C = 2(3.141592654)(7.5)
C = 6.283185307(7.5)
C = 47.1238898
C = 47.12 m rounded to two decimal places
The answer is C = 47.12 m
2006-10-11 05:26:36 · answer #5 · answered by SAMUEL D 7 · 0⤊ 0⤋
2 x Radius x Pi
2 x Radius = Diameter
Diameter x Pi
15m x 3.141592654
47.12
2006-10-11 05:17:00 · answer #6 · answered by Mr.Moo 4 · 1⤊ 0⤋
47.1 METER
if u develope a circle, i mean unfurled the circle, it will be a straight line having dimension
=pi*D
=3.14*15
=47.1 MTR.
2006-10-11 05:19:08 · answer #7 · answered by Anonymous · 0⤊ 0⤋
C = πd
C = π*15 = 3.141 * 15 = 47.12m
2006-10-11 05:30:44 · answer #8 · answered by Mariko 4 · 0⤊ 0⤋
multiply the diameter by pi.
That really is it.
2006-10-11 05:16:02 · answer #9 · answered by Stuart T 3 · 0⤊ 0⤋