Answer:

Step-by-step explanation:
The volume of cone is given by:

where
is the radius of the base and
is the height of the cone.
We need to solve for 
we have 
Multiplying both sides by 3 to remove 
⇒ 
⇒ 
dividing both sides by 
⇒ 
⇒ 
Taking square root both sides:
⇒ 
⇒ 
∴ 
Hello the answer would be 18
Explanation:
lines KH and JK are congruent.
Line KH=c+18
Line JK=2c
2c=36 divide by 2
c=18
I don’t know how to explain it any other way.. sorry if you don’t understand but mark my answer as brainliest if it helped you out, please.
Answer:
18
Step-by-step explanation:
21-n; n=3
Substitute n for 3:
Solve.
Answer:
On Paper
Step-by-step explanation:
On the Paper
I hope this helped!