Question

find the value of the variable in the diagram. leave in simplest radical form

Answer 1

Do you accept that
volume cone = 1/3 volume cylinder

Answer 2

i know that the formula for a cones volume is

V=1/3bh

Answer 3

\[21π=1/3~\times~x~\times~7\]\[9π=x\]\[x=28.26\]

Answer 4

(using 3.14 for π)

Answer 5

V=1/3*PI*X^2H
21pi=1/3*pi*X^2*7
63=X^2*7
9=X^2

X=3

Answer 6

now i am confused

Answer 7

my book says that it is 3

Answer 8

then it's 3, Idk, I think what I think, but the book.....