Calculate the volume of copper used to make a copper pipe which is 50cm long, that has an outer diameter of 8cm and a thickness of 5mm

i know the answer but im not telling you boi

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.