Wrapping

I was wrapping up my dad’s birthday present. I laid his birthday blanket square on the paper so the edges of the blanket and the paper were side by side; parallel.

However, when I pulled the edges of the paper over the blanket to stick one over the other, there was a gap! I didn’t have enough paper!

How did I solve the problem? Why don’t you try wrapping something up and see if that helps you work out the answer?