Question

a sphere has a radius of 3 and a different sphere has a radius of 6. compare the ratio of the volume of the smaller sphere to the volume of the larger sphere.

Answer 1

Do you know the formula to find the volume of sphere? @Kinzol1234

Answer 2

Whoops @Kinzo1234

Answer 3

no, im not sure

Answer 4

sphereV= (4/3)(pi)(r^3)

Answer 5

Vol=4 pi r*r*r/3=k r*r*r (k is a constant)
r*2 --> Vol*8
---
8 times the volume = 7 times larger
Not 8 times larger. 8 times as large = 7 times larger.

Answer 6

im not sure how to get 8? when i add in 3 im getting a completly different number.

Answer 7

(4/3)(22/7)(27) : (4/3)(22/7)(198)
(88/21)(27) : (88/21)(198)
hope this helped

Answer 8

r=3 and r1=6
volume of smaller one:volume of bigger one =4pi r *r*r/3 : 4pi r1*r1*r1/3
now cancel whatever got cancelled with eachother
now we hvae left only=> r*r*r/r1*r1*r1
now put he values
3*3*3/6*6*6
1/8

i hope u got it now :)

Answer 9

thnx for medal :) @dix123

Answer 10

np @yashii it really was good

Answer 11

thank you this makes sense but if we can just cube the number how come there is a formula?

Answer 12

i only put the numbers in the mentioned formulae.

Answer 13

@dix123 :)