Question

Find the largest area that a farmer can enclose by constructing a rectangular pen from 40 ft of fencing, if he uses a corner of his barn for two walls of the pen.

Answer 1

I am too pretty to enclose.

Answer 2

I think it's 80

Answer 3

Oh god, this owlet­got again.

Answer 4

how?

Answer 5

It is 100

Answer 6

L = w = 10
=> Max area A = 10^2 = 100 ft^2

Answer 7

YEYEYEE