Question

i need some help.. the problems i need help with are one that i got wrong...
find the surface area of the solid and the volume of the solid.

Answer 1

u have r=4 , h=12
volume= pi *r * r * h

Answer 2

surface area= 2 * pi * r * ( r +h)

Answer 3

did it help?

Answer 4

yeah

Answer 5

good stuff...

Answer 6

so then what i had for surface area and volume should be right

Answer 7

i dont see why i got it wrong..

Answer 8

could be something wrong with the calculations...and just to make sure the formulae are correct..use your textbook...

Answer 9

could they be wrong because the cylinder has a dip in it?