Question

Please answer 15 and 16 questions in the question paper

Answer 1

Step-by-step explanation:

area=l×b

1600=80×b

1600/80=b

b=20

perimeter=2(l+b)

=2(80+20)

2×100

perimeter=200

Answer 2

Answer:

15.area of rectangular field =1600m2

length=80m

Let breadth be xm

area of rectangle =l×b

=> 1600=80×x

x=1600/80=20m

perimeter of field = 2(l+b)

perimeter=2(100)=200m

16.the distance covered by kalyani in one round =perimeter of field=800m.

We know, perimeter of square field =4a

800= 4a

a=800/4=200m.

area of park =a2 => 200×200=>40000m2