Two square plots of land contains 74square feet. If the side of one plot is 2 feet longer than the side of other plot, find the dimension of both plots
Accepted Solution
A:
Answer: The area of other plot = s² = 5² = 25 sq feet The area of one plot = ( 5 + 2 )² = 7² = 49 sq feetStep-by-step explanation:Given as :The total area of two square plots = 74 sq feetLet The side of other plot = s feetSo, The side of one plot = ( s + 2 ) feetNow , ∵ Area of square = side² Area of other plot = s² Area of one plot = ( s + 2 )²As, The total area of two square plots = 74 sq feet So , s² + ( s + 2 )² = 74 sq feet Or, s² + s² + 4s + 4 = 74 Or, 2s² + 4s - 70 = 0Or, s² + 2s - 35 = 0 Or, s² -5s + 7s - 35 = 0Or, s ( s - 5) + 7 ( s - 5 ) = 0So, ( s - 5 ) ( s + 7 ) = 0 ∴ s = 5 , - 7 Thus The area of other plot = s² = 5² = 25 sq feet And The area of one plot = ( 5 + 2 )² = 7² = 49 sq feet Answer