Question
A cylinder of height 12cm and radius 5cm is made of cardboard use the value of 3.1 to calculate the total surface area of the cardboard needed to make
a) a closed cylinder.
b) a cylinder open at one end
a) a closed cylinder.
b) a cylinder open at one end
Answers
Queen
I don't understand math lol
PsyDAG
The surface area of a cylinder is height + 2(pi*r^2).
(pi*r^2) is the area at each end.
Is 3.1 the diameter or radius? 2r = D
(pi*r^2) is the area at each end.
Is 3.1 the diameter or radius? 2r = D
oobleck
The surface area of a cylinder is 2 pi rh + 2(pi*r^2).
if a cylinder's height is 12cm and the radius is 5cm is made of cardboard. then use value of 3.1 for n to calculate the total area of cardboard needed to make "a closed cylinder "
I don't know the answer
Skyler
I don't get it