Surface Area of a Cylinder??

Question

http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Cylinder.svg/392px-Cylinder.svg.png

ok so say d is 6cm and h is 12cm. what would be the approximate surface area of this cylinder (click on the link and that is the pic of the cylinder)

thanks

Answer 1

Formula for the Surface Area of a Cylinder=

(pi)(diameter)(height) + 2(pi)(radius squared)=



Pi= 3.14

Diameter = 6 cm

Height = 12 cm

Radius (half the diameter) = 3

Radius Squared = (3)(3) = 9 cm squared



Plug values into formula:

(3.14)(6)(12) + (2)(3.14)(9) = 226.08 + 56.52 =



Answer:

282.60

Answer 2

A cylinder is made of 2 circles and a rectangle



find the area of the circle on both ends (A=pi*R^2), then add those to the area of the rest of it (using h times the circumference). (C=pi*d)

Answer 3

2 pi r h

r= d/2 = 3cm

A = 2 pi x 3 x 12 = 72 pi

Answer 4

surface area: A = 2. * pi * r * h, where r = d/2.



volume: V = pi * r^2 * h



cheers

Answer 5

im no longer gonna supply the respond : P you're able to be able to desire to evaluation ! heres help nonetheless :) to locate the exterior are of the finished cylinder you're able to be able to desire to function the exterior component of the two circles and the exterior component of the different (oblong-ish) shape. circle floor section = pi (3.14) situations the radius (2.5) situations the radius (2.5) multiply that answer via 2 so as which you get the component of the precise AND backside circles different floor section = circle circumfrence [diameter (radius situations 2 .. 18.6 + 18.6) situations pi (3.14) upload that quantity to component of the circles and theres your answer !! wish that helped !! :)

Answer 6

dπ = C (circumference)



C * h = surface area of cylinder excluding the top and bottom circle

--------------------

2(π(d/2)^2) = area of top and bottom circle





(surface area of cylinder excluding the top and bottom circle)



+



(area of top and bottom circle)



=



surface area of entire cylinder

Answer 7

282.6 sq cm