Question 830927
let the width of the rectangle = w
the length of the rectangle = 5w

to get the area of a rectangle you multiply the length times the width
5w(w)=245 ft
5w^2=245 ft
w^2=49
w=7

therefore the width = 7 ft  and the length = 35 ft

the formula to find the perimeter is 2w + 2l
2(7) + 2(35)
14 + 70 = 84

The perimeter is 84 ft.