The ends are right-angled triangles having sides . the length of the block is y. The total surface area of the block is 3 600 . 2.1 Show that: (3) 2.2 Determine the value of for which the block will have a maximum x volume. (6) 1.1 P and Q QR QR PQ PQ Area of PQRS = PQ QR = Method = (3) 1.2 For maximum area:
The ends are right-angled triangles having sides . the length of the block is y. The total surface area of the block is 3 600 . 2.1 Show that: (3) 2.2 Determine the value of x for which the block will have a maximum volume. (6) 1.1 P and Q QR PQ Area of PQRS = PQ QR = = QR PQ Method (3) 1.2 For maximum area: