Question

Perimeter of rectangle is 150m length is 500mm find the area

Answer 1

Answer:

Perimeter=150m=150000mm

Length=500mm=0.5m

Perimeter, 2(l+b)=150000=2(500+b)

=>2b=149000

=>b=74500mm=74.5m

So, area, lb=74.5×0.5=37.25

so, area =37.25 sq.m

Answer 2

Answer:

l = 500mm

P = 150m

unit conversion

l = 0.5m

using the formula

A = wl

P = 2 ( l + w)

solving for A

A = P . l/2 - l²

= 150 . 0.5/2 - 0.5²

= 37.25m²