If the height is 9 units and the volume is 36 cubic units, what is the surface area of a right circular cylinder?

44π square units.

Step-by-step explanation:

The volume

36 = π r^2 h

36 = 9π r^2

π r^2 = 36/9 = 4π  ( = the area of the base).

Now r^2 =  4

and r = 2.

So the circumference of the base =  2 * π * 2.

=  4π.

The area of the curve surface = 9 *  4π

= 36π.

The surface are of the cylinder = 2 * area of the base + area of the curved surface

=  2 * 4π + 36π

=  44π square units.

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

51840000 cm 2

step-by-step explanation: