2007-05-26 10:03:36 · 6 answers · asked by doyochainhanlow12 1 in Science & Mathematics ➔ Mathematics
pi * r^2 * h
so
3.14 * 16 * h = area
(we need the height h)
2007-05-26 10:07:24 · answer #1 · answered by Anonymous · 0⤊ 0⤋
if the circumference is 24, the diameter is 24/Ï = 7.6394, not 8. is 8 the height? maybe 24 was the height?
surface area of a cylinder is 2Ïr² + 2Ïrh.
2007-05-26 10:18:28 · answer #2 · answered by Philo 7 · 0⤊ 0⤋
Assume HEIGHT = 24
Surface Area = 2.Ï.r² + 2.Ï.r.h
Surface Area = 2.Ï.r.(r + h)
Surface Area = 8Ï.(4 + 24)
Surface Area = 704 units² (to nearest whole number)
2007-05-27 01:45:34 · answer #3 · answered by Como 7 · 0⤊ 0⤋
well because theres no height(h) we have to leave the answer in hcm [squared]
btw ur either lookin 4 the curved surface area or the total surface area but i'll do both leaving answer in hcm[squared]
solution= curved surface area> 2pi*r*h
2x3.14x4h
=25.12[h]cm[squared]
totalsurface area = 2pi*r*h+2pi*r
=25.12[h]+2x3.14x4
=25.12h+25.12
=50.24[h]cm[squared]
its a bit confusing without a [h]..im not sure.
2007-05-26 10:34:03 · answer #4 · answered by Tobyas 2 · 0⤊ 0⤋
Missing info. You are doomed to fail.
2007-05-26 10:12:15 · answer #5 · answered by Mike G 3 · 0⤊ 0⤋
your numbers don't really make sense, and your also missing the height.
2007-05-26 10:07:37 · answer #6 · answered by Anonymous · 0⤊ 0⤋