Question

What is the combined area of the two bases of the following cylinder?

Answer 1

i want to clarify what is 12cm and 15cm? is that a radius or diameter of the bases? you did not specify. Btw, since it is a cylinder, the bases are circles.

Area of a circle:
A = πR^2 <---- in terms of radius
A = (πD^2)/4 <---- in terms of diameter
where:
π = 3.141592654

Volume of cylinder:
V = (area of base)(height of the cylinder)

Factor of volume change:
F = (new volume)/(original volume)

Answer 2

but the volum of the cylinder is v=pi* r^2*h

Answer 3

okay so the radius since its divided 12 by 2 =6? so then that's suppose to be r?

Answer 4

ya

Answer 5

u need a medal dude

Answer 6

sure

Answer 7

i think i need one to

Answer 8

lol

Answer 9

If the dimensions of the following cylinder are doubled, what factor will the surface area change by?




2
4
6
8