Surface Area and Volume
A big cantaloupe has a diameter of about 26 inches. How much surface area does its peel cover?
You ate half the cantaloupe and now you're full. How much saran wrap will you need to cover the rest of the cantaloupe and save it for later?
Find the surface area of the solid.
As part of your pottery class, you decide to make a bowl in the shape of a hemisphere. It's a perfect hemisphere, so clearly you rock at pottery. If you want to paint the entire thing blue, how much surface area will you cover?