Tony -

Michael is correct. I'll add a couple of nuances:

An easy way to select the edges is to select one side of the hair blower and in the upper right of the browser, click the "Details" button. Then click where it says "10 naked edges", and then click Join in the Edit Menu. This makes a closed curve from your edges. Repeat for the other side of the hair blower.

Then draw an arc to connect the two closed curves and use it to sweep around the two closed curves. You can add points to the arc if you want to smooth out the sharp transition.

Ed Ferguson