Consider the point. (2, 3, 4)

a) What is the projection of the point on the xy-plane?

b) What is the projection of the point on the yz-plane?

c) What is the projection of the point on the xz-plane?

d) Draw a rectangular box with the origin and (2, 3, 4) as opposite vertices and with its faces parallel to the coordinate planes. Label all vertices of the box. Find the length of the diagonal of the box.