ANSWER:

1080m²

STEP BY STEP EXPLANATION:

so,l=6/5b

5l=6b

5l-6b=0-------------(1)

perimeter=132

2(l+b)=132

l+b=66-------------------(2)

multiply (2) by 5

5l-6b=0

5l+5b=330

-11b=-330

b=30m

substitute in (1)

5l-180=0

5l=180

l=36m

area=l×b

=36×30

=1080m²

therefore area=1080m²