I think it’s 4 but not sure
Answer:

Step-by-step explanation:
Curved surface area=
where R is radius and H is height
Since H=6R then curved surface area=
Therefore,
and making R the subject

Therefore, H=6R=6*3.000604=18.00362 m

Therefore, 
Answer:
45/60=0.75
Step-by-step explanation:
Answer: The perimeter of a square is defined as the length that its boundary covers. The formula to calculate the perimeter of a square is given as: P = 4 × side.
Step-by-step explanation: