Question

The perimeter of a rectangular field is 151metre square .If its breadth is 32 metre,find its length and area

Answer 1

perimeter=2(L+B)
151 =2(L+32)
151/2=L+32
L=65.5-32=33.5
area=L×B
=33.5×32

Answer 2

Perimeter = 151 m

Breadth = 32 m

Length =

$\frac{perimeter }{2} - breadth \\ \frac{151}{2} - 32 \\ = \frac{87}{2} = 43.5m$

Area = l×b = 32 × 43.5m² = 1392 m²