Question

PLEASE HELP! 80 POINTS AND BRAINLIEST TO FIRST ANSWER!
A rectangular pen is constructed with 300m of fencing against a barn wall. What dimensions give the maximum area?

Answer 1

I want to say a 100m on each side.

since it’s against a barn wall, then there would be three sides left. But I could be wrong. ¯\_(ツ)_/¯