3. A man wishes to have a rectangular shaped garden in his backyard. He has 84 feet of fencing with which toenclose his garden.a) Write an expression for the perimeter of the garden.b) The area of the garden is A - I'w. Use the perimeter equation from part(a) to write the area in terms ofjust one variable.c) Find the dimensions for the largest area garden he can have if he uses all the fencing.

3. A man wishes to have a rectangular shaped garden in his backyard. H

1.	3. A man wishes to have a rectangular shaped garden in his backyard. He has 84 feet of fencing with which toenclose his garden.a) Write an expression for the perimeter of the garden.b) The area of the garden is A - I'w. Use the perimeter equation from part(a) to write the area in terms ofjust one variable.c) Find the dimensions for the largest area garden he can have if he uses all the fencing.
Answer» let length of gardan= lbreath = b2(l+b)=perimeter2(l+b)=84l+b= 42b= 42-larea = 1^°wl(42-l)=1^°w