MAP 4C Unit 1: Assignment 2: (Volume, Surface Area, & Optimization) /30 1. A landscaper is preparing a rectangular flowerbed for planting. The bed measures 6 m by 4 m, and will have topsoil to a depth of 14 cm. Topsoil is bought by the cubic metre. How much top soil must be ordered for the bed? (2) 2. A triangular prism has a volume of 200 cm, a height of 8 cm and a base of 5 cm. Find the length. (2) 3. Maryanne is putting up a fence and will need 8 posts. The rectangular posts have a 6 inch by 6 inch base and are 8 feet long. Her neighbour advises her to dig cylindrical holes that are 2 feet in diameter and 3 feet deep. How many cubic feet of concrete will she require to fill all the holes once the posts are in? (5) 3 feet