Question

Please Help

The volume of a cylinder is 81 T cm. If the radius is 3 cm, what is the height
of the cylinder?
3 cm
O A. 13.5 cm
O B. 27 cm
O C. 4.5 cm
O D. 9 cm

Answer 1

9 cm

Explanation:

Answer 2

Explanation:

Volume of a cylinder of radius

r

and height

h

is

π

r

2

h

As radius is

3

and area is

81

π

cubic units,

π

3

2

×

h

=

81

π

or

9

π

×

h

=

81

π

Hence

h

=

81

π

9

π

=

9