Surface Area of a Sphere

The following picture shows how we find the surface area of a sphere. It is just a simple formula that we can substitute values into. 

So as you can see, the only piece of information we need is the radius of the sphere. So looking at the following example, this is the working out we need for finding the surface area of a sphere. 

So finding the surface area of a sphere is really quite simple. You should now be able to finish off all of the surface area work from the second worksheet. This worksheet can be found in the "Worksheets" tab up the top of this page. 

As always, if you have any questions on this topic feel free to comment on this post, or email or chat to me in person.