a) A road has a formation breadth of 9.00 m, and side slopes of I in 1 cut, and I in 3 in fill. The original ground had a cross fall of 1 in 4. If the depth Of excavation at the centre lines of two sections 20 metres apart are 0.40 and 0.60 metres respectively, 1. find the volumes of cut and II. fill over this length using end areas formula. b) Explain what the mass haul diagram is all about to the Grafton Town mayor in your own words. c) Complete the following table for a mass haul diagram