Question

A school hall 25 m long and 15m wide is surrounded by a verandah of uniform width of 4m. What is the area of the verandah?

Answer 1

I got `384m^2`

Explanation:

Have a look at the picture:

To find the area of the verandah we can take the big area and subtract the small one (the school hall).
So we get:
`"Area"=A_"big"-A_"small"=(33*23)-(25*15)=759-375=384m^2`

Answer 2

The area of verandah is `384` sq.m.

Explanation:

Area of the hall is `A_h=25 * 15 = 375` sq.m

Total measurement including verandah is `(25+8)=33` m

long and `(15+8)=23` m wide .

Total area including verandah is `A_t= 33*23= 759` sq.m

The area of verandah is `A_v= 759-375=384` sq.m [Ans]