A box of chocolates is a prism with a base in the shape of a heart and a height of 2 inches. Here are the measurements of the base. To calculate the volume of the box, three different students have each drawn line segments showing how they plan on finding the area of the heart-shaped base.

1. Although all three methods could work, one of them requires measurements that are not provided. Which one is it?
2. Calculate the area of the box of chocolates.