Area List

5 Responses to “What is surface area and what is the formula to find the surface area of a right circular cylinder???”

1. Banabu Man on February 9th, 2010 at 3:07 pm

   Surface area is the amopunt of paper you’d need to cover the shape.

   For a cylinder of height H with two circular ends of radius R.

   Each end is pi x (R squared)

   The verticle bit is the height x the circumference of the end

   ie H x 2 x pi x R

   The total area is therefore

   (2 x (pi x R squared) + (H x 2 x pi x R)
   References :

2. TheOnlyBeldin on February 9th, 2010 at 3:12 pm

   Surface area is pretty self-explanatory; it’s the area of the surface of a 3-dimensional object (cube, cylinder, sphere, cone, etc.).

   For a right circular cylinder, the formula is a little more complicated than usual, because you have to deal with two types of surfaces – the circular portion at each end and the cylinder portion. The area of the two circles at either end is (pi) * r ^2 each, while the cylindrical portion is easier to think of if you cut it and open it up into a rectangle, where one side is the height of the cylinder (h) and the other is the circumference of the circle, or 2 (pi) r.

   So, the overall formula is 2 (pi) r^2 + 2 (pi) r*h, or to simplify:

   2*(pi)*r*(r+h)
   References :

3. bruce on February 9th, 2010 at 3:53 pm

   surface area
   let r be radius of base of cylinder
   let h be height of cylinder
   surface area of right circular cylinder
   =2*(area of flat circular face/base)+ curved area
   —–it has 2 flat circular faces
   area of flat circular face
   =pi*r*r

   area of curved surface= circumfurence of base * height
   = (2*pi*r) * h

   therefore total surface area of a right circular cylinder= 2*pi*r*r + 2*pi*r*h

   I hope u have understood the meaning of surface area as well.–roughly the total area of outer surface of an object

   best regards,
   References :

4. jdsheth2004 on February 9th, 2010 at 4:35 pm

   Surface area is the area of a given surface. Roughly speaking, it is the "amount" of a surface (i.e., it is proportional to the amount of paint needed to cover it), and has units of distance squared. Surface area is commonly denoted A for a surface in three dimensions, or A for a region of the plane (in which case it is simply called "the" area).

   Right Circular Cylinder :
   Right Circular Cylinder : A right circular cylinder is a cylinder whose base is perpendicular to its sides. Facility equipment, such as the reactor vessel, oil storage tanks, and water storage tanks, is often of this type.

   The volume of a right circular cylinder is calculated using the following formula: V = pi*r^2*h.

   The surface area of a right circular cylinder is calculated using the following formula:
   SA = 2pi*r*h + 2pi*r^2.
   The surface area of a right circular cylinder is expressed in square units, and the volume of a right circular cylinder is expressed in cubic units.

   Example: Calculate the volume and surface area of a right circular cylinder with r = 3" and h = 4".
   Be sure to include units in your answer.
   Solution: V = pi*r^2*h , SA= 2pi*r*h + 2pi*r^2
   V= pi(3)(3)(4) , SA = 2pi(3)(4) + 2pi(3)(3)
   V= pi(36) , SA= 2pi(12) + 2pi(9)
   V = 113.1 cubic inches, SA= 132 square inches.
   References :

5. Sherman81 on February 9th, 2010 at 5:06 pm

   the Surface area is the area that lines on the Surface

   T = 2 Pi r(r + h)

   Found at http://mathforum.org/dr.math/faq/formulas/faq.cylinder.html#rccylinder
   References :

Leave a Reply