I made a couple of mistakes in the assignment.
On Page 4 I asked you to find the radius of a sphere given its volume. That requires you to take a cube root, which we don’t do in the course. Instead, just find , the radius cubed, which is part of the volume formula.
On Page 10 the last figure is a pentagon on a rectangle. I meant to indicate that the pentagon was regular, meaning all side lengths are equal and all angles are equal. I remembered the side lengths, but I missed the angles.