The container shown in the diagram is in the shape of a closed cylinder with a
hemisphere at one end. Its volume is 360 cm'. The base radius of the cylinder is rc
and its height is h cm.
(i) Express h in terms of r.
(ii) Show that the external surface area, A cm², of the
container is given by A = tr?+ 720 7.
(iii) Find the minimum value of A, leaving your answer
in terms of it.

24

step-by-step explanation:

nope.   happens to me as well.

-aparri

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

answer: 8

step-by-step explanation: