Answer:
(a) 69m
(b) 82cm
Step-by-step explanation:
(a) The area is the length multiplied by width, so the answer would be 4071/59, or 69(no, I'm not kidding lol)
(b) The perimeter can be calculated by 2(length)+2(width). So, the width of the window would be (356-2(96))/2, or 82
