Question

A rectangular lawn is 15 m long and 9 m wide . It has path 1.5 m wide all around it . Find area of the path

Answer 1

So the length of the formed rectangle on the downside = L x B = 1.5 x (15 + 1.5 + 1.5) = 1.5 x 18 = 27m.
The rectangles on the shorter parallel sides = 2 x L x B = 2 x (9+ 1.5 x 1.5) = 2 x 15.75 = 31.5m
the rectangle left = L x B = 15 x 1.5 = 22.5
hence the area of path = sum of all those rectangles = 27m + 31.5m + 22.5m = 81m.
sorry for the confusion if u felt any.

Answer 2

Explanation:

area of lawn =(15×9)m²

the length of the outer rectangle

15 m+1.5m +1.5 m=18 m

and the breadth of the outer rectangle =9m +1.5m +1.5m =12m

total area of the lawn and the path (18×12)m² =216 m²

the area of the path = 216 m²- 135m² = 81m²