Question

If the radius of a sphere is tripled, then its volume will increase 27 times.
Select one:
True
False

Answer 1

is it true? @hhmh4

Answer 2

im not sure about this one

Answer 3

formula of volume of sphere
=\[\frac{ 4 }{ 3 }\pi*r^3\]

Answer 4

true I believe

Answer 5

if replace r by 3r what will u get

Answer 6

volume proportion to r^3

Answer 7

27

Answer 8

yeah

Answer 9

the reason it's true is the the linear measurement is tripled and you are working in 3 dimensions of cubic units

so its the (linear scaling factor)^3

you can test it by finding the volume of a sphere radius 1 unit

and then the volume of a sphere 3 units

then compare the volumes

Answer 10

good! :)