The diagram shows a solid hemisphere.
Surface area of a sphere = 40r2
Volume of a sphere =
ar3
cm?
The hemisphere has a total surface area of -
The hemisphere has a volume of kn cm
Find the value of k.

This question has missing diagram, but I'll try to help you either way. We know that the surface area of a sphere is given by:

On the other hand, the volume of a sphere is given by:

1. The hemisphere has a total surface area of:

The total surface area of the hemisphere is half the surface area of a sphere plus the area of the base of the hemisphere which is a circular base with radius r, in other words:

2. The hemisphere has a volume of kn cm^3 . Find the value of k.

As I understand this question we want to know what is the value of k given the volume of a sphere, in other words, the volume of a sphere is:

And the volume of a hemisphere is:

So the hemisphere has a volume:

In other words:

something over 10 so ? /10

step-by-step explanation: