Problema Solution
A large movie screen is in the Panasonic Imax theater at Darling Harbor, sydney,Australia. The rectangular screen has an erea of 11,349 square feet. Find the dimensions of the screen if it is 20 feet longer than it is wide.
Answer provided by our tutors
let the width of screen be x. then according to question, length= x+20.
area = length x width
=> 11349= x.(x+20)
=>x^2+20x-11349=0
=>x=97,-117
hence x=97 since -117 is not possible.
so dimensions of screen are 97 and 117 feets