Question

The surface area of 2 similar rods are 36picm^2 and 100pi cm^2 The volume of the smaller solid is 20pi cm^3. What is the volume of the larger solid?

Answer 1

I think it's 58.3, am I right?

Answer 2

a rod is like a cylinder thing right?

Answer 3

Yeah

Answer 4

Please, guys, I'm so desperate for help. I'm tired of being ignored. :(

Answer 5

formula for surface area is 2 π r2 + 2 π r h
and formula for volume of a cylinder is π r2 h where "r" is squared

Answer 6

Is it 58.3, please alexwee. You have no idea what's happening on the other side of this computer. I need a "yes" or no"

Answer 7

height of the small cylinder : height of the big cylinder determines the laterial area i think :/ but i cant be sure cuz i dont have a calculator on me and my computer's calculator doesn't work :/

Answer 8

but you would find the radius of the smaller cylinder to find the height then use ratios :/

Answer 9

*sigh* please... don't answer these questions if you don't know the answer

Answer 10

i do know how to solve the problem so i guess that i would know the answer :/

Answer 11

What's the formula for surface area of a pyramid?

Answer 12

i believe it is 1/2 (perimeter of the base)(slant height)+ area of the base