Question

Find the dimensions of the rectangle
below.
X_7 breath ,2X length, 520in^​

Answer 1

Length = 2x

Breadth = (x-7)

Area = L*B

520 = 2x(x-7)

520 = 2x²-14x

x²-7x-260 = 0

x² - 20x +13x - 260 = 0

x(x-20)+13(x-20) = 0

x = 20

so, length = 2*20 = 40 (Ans)

B = (x-7) = 20-7 = 13 (Ans)

(Mark as brainlist)