A factory is to be built on a lot measuring 210 ft by 280 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory.

Question

a) What must the width of the lawn be?
b) And If the dimensions of the factory are A ft by B ft with A<B, then A=? B=?

Answer 1

Are you going to wait the four hours until the quiz expires or do you have a plan B?

Answer 2

I'm trying to solve them but I kept getting them wrong, so my plan B is to get the answer from somewhere else, because I'm struggling whit this quiz.

Answer 3

let the width be x ft

dimensions of the factory are:
210-2x by 280-2x

So what is the area of the factory ?
set that equal to 1/2 the area of the lot and solve that quadratic