Question

is it possible to design a rectangular Park of perimeter 80 and area 400metre square if so find its length and breadth​

Answer 1

Answer:

l is 20

b=20

Step-by-step explanation:

2(l+b)=80

2(20+20)=80

l×b=400

20×20=400

hence,l=20

b=20

Answer 2

Answer:

Step-by-step explanation:

Perimeter=80 m

2(L+B) =80

L+B=40 m

Area=400m²

LB=400

B=40-L

L×(40-L) =400

40L-L²=400

40L-L²-400=0

L²-40L+400=0

(L-20) (L-20) =0

L-20=0

L=20m

LB=400

B=400/20=20m

Ans: Yes a park of dimensions 20×20 can be made