Question

perimeter of rectangle is 60 CM what is the maximum area of a rectangle if we consider all such rectangle formed with given perimeter ​

Answer 1

Step-by-step explanation:

area - lb

l+b=30

b=30-l

hence.-- l(30-l)=area

differentiating we get l=b=15

225=area

Answer 2

Step-by-step explanation:

area=l×b

l=b first equation

p=2(l+b)

60=2(2b)

60=4b

60/4=b

b=15

l=b=15

area=15×15

area=225