Determine the circumference of a circle with radius 3 in. Give a decimal answer rounded to the nearest hundredth.
2006-12-12 18:34:35 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
circumference = 2 (pi) r
= 2 (22/7)3 inches
= 132/7 inches
= 18 and 6/7 inches
= 18.85 inches
2006-12-12 18:40:39 · answer #1 · answered by TJ 5 · 2⤊ 0⤋
C= Pi x Diameter
Diameter = 2 radius
C= 3.14 x 6
Circumferance = 18.85 inches
2006-12-13 02:39:40 · answer #2 · answered by ignoramus 7 · 0⤊ 0⤋
C = 2Pi r = 2 x 22/7 x 3 = 18.86 in.
Word the question properly. It should be said .... round to two decimal places .... not nearest hudredth. 'Decimal' and 'nearest hundred' won't go together.
2006-12-13 03:57:50 · answer #3 · answered by Srinivas c 2 · 0⤊ 2⤋
3 X 3.14 (pi)
Circumference is Pi X radius
2006-12-13 02:43:35 · answer #4 · answered by Anonymous · 0⤊ 2⤋
C= 2(pi)r
C=2(pi)3
C=18.85
2006-12-13 02:37:25 · answer #5 · answered by imratherawesome 2 · 0⤊ 0⤋
circumference=2 * pi * r ; where r=3
circumference=2 * 3.141 *3
circumference=18.850 inches
2006-12-13 02:43:12 · answer #6 · answered by physics maniac 2 · 0⤊ 2⤋
c=2[pi]r
= 2*22\7*3
=2*3.14*3
=6.28*3
=18.84
therefore c=18.84in
2006-12-13 06:41:53 · answer #7 · answered by Lyf's HeCtIC!!!!!!!! 2 · 0⤊ 2⤋
C=2 II r, II=3.142
=2X3.142X3 =18.852= 18.900(nearest to hundered)
I guess it is correct because tht is how we do it.
2006-12-13 02:47:17 · answer #8 · answered by Anonymous · 0⤊ 2⤋