Question

If a cylindrical jar has the dimensions shown in the figure below , calculate the amount of glass needed to create this jar.
A. 70.7cm sqrd
B. 5.75pi cm sqrd
C.48.3 cm sqrd
D. 18 cm sqrd

Answer 1

Okay so it is a jar!
So we require only the CSA and the bottom! :)
So Amount of glass required would be?
\[\pi r^2h + \pi r^2\]
Understood?
Now we have radius = 1/2 * diameter = 1.5cm
And height as = 6cm!!
Substitute the values in and you get the answer!! :)

Answer 2

The closest answer i got to was answer C out of all the answers. So around 48.3?

Answer 3

Yes! :D CORRECT! :D

Answer 4

Thank you so much xD

Answer 5

:)