Question

If the dimensions of a cylinder are doubled, then its volume is quadrupled.
True
False

Answer 1

do you know the formula for volume of a cylinder?

Answer 2

not really!

Answer 3

\[V = \pi r^2 h\] where r is radius and h is the height

radius and height are the dimensions

can you verify your question now?

Answer 4

still need help?

Answer 5

ya!

Answer 6

sub into the equation friendly numbers the double those dimentions and see if the volume is really quadruples

Answer 7

so it would be false?

Answer 8

wait u did that already ?

Answer 9

ya i think?

Answer 10

try doing it and tell me what u get

Answer 11

i didnt my sister figured it out and i dont know how she did it!

Answer 12

ok the equation is V= pi r^2 h

so sub in 3 and 4 for r and h respecitvley

then solve for the volume

after that sub in the double of 3 and 4 which are 6 and 8

and then solve

to find out the quadrupled part divide the first volume by the secound volume

Answer 13

thanks!

Answer 14

ur welcome