Question

A rectangle lawn 20meter long and 12meter wide is bordered by a path 2 meter wide. Find area of the path?

Answer 1

recall that the area of rectangle is given by
A = L*W
where L is length and W is width.
substituting,
A = 20*12 = 240 m^2 (we'll use this later)

since there is 2 m wide path, (and thus there is total of 4 m on both sides),
20 - 4 = 16 m
12 - 4 = 8 m
getting the area of this,
area = 16*8 = 128 m^2
finally, we subtract this from the original:
240 - 128 = 112 m^2 (area of path)

hope this helps~ :)

Answer 2

136