Radius 27cm and Height 12cm
Radius 17mm and Height 35mm
2006-11-30 03:03:48 · 10 answers · asked by pvm3355 1 in Science & Mathematics ➔ Mathematics
The curved surface area is 2*pi*r*h
or 2*3.142*27*12 sq cms
and 2*3.142*17*35 sq mms
you can do the rest
2006-12-03 10:17:59 · answer #1 · answered by geoff b 2 · 0⤊ 0⤋
Curved surface area = 2 x pi x r x h
Radius 27cm and Height 12cm
Area = 2 x pi x 27 x 12 = 2036 cm2
Radius 17mm and Height 35mm
Area = 2 x pi x 17 x 35 = 3738 mm2
2006-11-30 10:17:26 · answer #2 · answered by Kemmy 6 · 0⤊ 0⤋
Surface area = 2 pi radius x height.
2006-11-30 06:43:42 · answer #3 · answered by CLIVE C 3 · 0⤊ 0⤋
Area of curved surface of a cylinder
=circumference*height[2*Pi*r*h]
1]=2*[22/7]*27*12=2036.57 sq.cm
2]=2*[22/7]*17*35=3740sq.cm.
2006-11-30 03:19:30 · answer #4 · answered by openpsychy 6 · 0⤊ 0⤋
The answer is : Perimeter of curved area * height
= 2*pi*r*h = 2*22/7*27*12 = 2036.57 sq cm
The second = 2*22/7*17*35 = 3740 sq mm
2006-11-30 03:15:25 · answer #5 · answered by Paleologus 3 · 0⤊ 0⤋
Formula for curved area of a cylinder is 2*pi*radius*height.
Substitute in 2 035.75204 square cm
and
3 738.49526 square mm
2006-11-30 03:07:54 · answer #6 · answered by Selphie 3 · 0⤊ 0⤋
Think of them as rectangles...
The Radius x 2 would be one side..
The Height would be the other side..
54cm x 12cm would be the area of the first..
34mm x 35mm would be the area of the second.
2006-11-30 03:08:55 · answer #7 · answered by Anonymous · 0⤊ 0⤋
pi x D x H where D is the diameter and H is the height of the cylinder.
2006-11-30 03:09:14 · answer #8 · answered by Anonymous · 0⤊ 0⤋
A=2*pi*r*h
A=area
r=radius
h=height
i hope that this helps
2006-11-30 07:11:59 · answer #9 · answered by Anonymous · 0⤊ 0⤋
2*r*Pi*h
where r is the radius, h the height and Pi is 3.14.....
2006-11-30 03:07:18 · answer #10 · answered by ehc11 5 · 0⤊ 0⤋