A school wants to build a fence to enclose a rectangular 4-sided playground of 144m^2. What is the min cost for a fence if it costs $5.70 per meter of fencing?

Question

2. The principal checks the budget an sees that only $228 is available for the purchase of fencing. What s the largest rectangular 4-sided area that she can enclose?

I am stuck on question 2 but I know how to do question 1. The two questions are linked!

Answer 1

228/5.7 = 40 meters

40 / 4 = 10 meters = 100 square meters