3. (a) Hayley wants to enclose a rectangular space for a new garden. She has purchased 1200 m of wire fencing to enclose
Posted: Sat Feb 26, 2022 10:54 am
3. (a) Hayley wants to enclose a rectangular space for a new garden. She has purchased 1200 m of wire fencing to enclose three sides, and will put the 4th side against the backyard fence. What is the maximum area of the new garden? [7 marks) (b) A box without lid having maximum volume is to be made from a rectangular piece of 32 cm x 20 cm by cutting equal squares from the four corners and turning up the projected ends. Find the volume of the largest such box.