Which is the surface are of the right cylinder below? A. 176 pi units^2
B. 144 pi units^2
C. 192 pi units^2
D. 72 pi units^2

=176 pi  units^2

Step-by-step explanation:

The surface area of a cylinder is given by

SA = 2 pi r^2 + 2 pi rh  where r is the radius and h is the height

     = 2 * pi * 8^2  + 2 pi *8*3

    = 128pi   + 48 pi

    =176 pi  units^2

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.