Question

What will b the cost of building a fence around a square plot with an area equal to 289 sq ft?

Answer 1

Let the side of the square plot be a

a²=289 as stated in question

a=√289

a=17ft

Cost of fence=cost per foot x total length

Here the to tal length is the perimeter

4a=17x4=68ft

If th cost of fencing per foot is p

Then the total cast is 68p

Hope it helps:)