Question 5 - 20 marks This question is based on your work on MU123 up to and including Unit 8. (a) Figure 2 shows a cuboid and a solid sphere (not drawn to scale). Edge AB has length 25cm, and the diagonal AC has length 28cm. The radius r of the sphere is 12cm. Figure 2 Give your answers to each of the following to two significant figures. (i) Find the surface area of the sphere. (ii) Find the volume of the sphere. (iii) Use Pythagoras' Theorem in triangle ABC to find the length of side BC. (iv) If the volume of the sphere is equal to the volume of the cuboid, find the depth AD of the cuboid, showing your working at each stage