Richard had carpeting installed in his new family room. the workers arrived at 12: 20 and left at 3: 15. how long did they take?
a 3 hours and 5 minutes
b 2 hours and 5 minutes
c 2 hours and 55 minutes
d 3 hours and 55 minutes

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!