Question

Determine the unknown side length of the golden rectangle with the given width length. w = 7, l = _____ a. 14.16 b. 3.24 c. 11.33 d. 4.33

Answer 1

since the rectangle is a golden one, then the fraction:

`(L)/(7)= frac{1+\sqrt5}{2}\text{ from which we get:}\\ l=7 (1+\sqrt5)/(2) =11.3`

The correct answer is D then