Comments on: Find the radius, diameter and circumference of a circle with an area of 64 pi cm2 Write your answers as decima http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima Wed, 08 Feb 2012 12:47:59 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: grampedo http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima/comment-page-1#comment-1035 grampedo Sun, 01 Nov 2009 11:41:59 +0000 http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima#comment-1035 A=(pi)r^2 64(pi) = (pi)r^2 r^2=64(pi)/(pi) r^2=64 r=+ or -8 r= -8 not a practical solution, r=8 d=2r, =2(8), = 16 C=(pi)d C=3.14(16) C=50.24 r=8cm., d=16cm., C=50.24cm.<br><b>References : </b><br> A=(pi)r^2
64(pi) = (pi)r^2
r^2=64(pi)/(pi)
r^2=64
r=+ or -8
r= -8 not a practical solution,
r=8

d=2r, =2(8), = 16

C=(pi)d
C=3.14(16)
C=50.24

r=8cm.,
d=16cm.,
C=50.24cm.
References :

]]> By: aman d http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima/comment-page-1#comment-1034 aman d Sun, 01 Nov 2009 11:18:59 +0000 http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima#comment-1034 pi r^2=64 pi r^2=64 r=8cm d=2r d=2(8) d=16cm circum.=2 pi r =2(8) 22/7 16*22/7 =50.24 cm<br><b>References : </b><br> pi r^2=64 pi
r^2=64
r=8cm
d=2r
d=2(8)
d=16cm
circum.=2 pi r
=2(8) 22/7
16*22/7
=50.24 cm
References :

]]> By: CHiNback http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima/comment-page-1#comment-1033 CHiNback Sun, 01 Nov 2009 10:31:59 +0000 http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima#comment-1033 This one is easy. It would take me more time to type out this question than to do it myself. r=8.00cm d=16.00cm C=16pi ~ 50.26cm And please don't say I rounded wrong for the C. You round toward the nearest even digit. 50.265 rounds to 50.26, while 50.275 rounds to 50.28.<br><b>References : </b><br> This one is easy. It would take me more time to type out this question than to do it myself.
r=8.00cm
d=16.00cm
C=16pi ~ 50.26cm

And please don’t say I rounded wrong for the C. You round toward the nearest even digit.
50.265 rounds to 50.26, while
50.275 rounds to 50.28.
References :

]]> By: UntiedArms3 http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima/comment-page-1#comment-1032 UntiedArms3 Sun, 01 Nov 2009 09:59:59 +0000 http://www.thearealist.com/circle-area/find-the-radius-diameter-and-circumference-of-a-circle-with-an-area-of-64-pi-cm2-write-your-answers-as-decima#comment-1032 Do your own homework. It will help you in the long run.<br><b>References : </b><br> Do your own homework. It will help you in the long run.
References :

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