One angle of a rhombus is 60

^{o}. The shorter of the two diagonals is 8cm long. Find the length of the longer one.-
**A.**

8(sqrt{3}) -
**B.**

(frac{16}{sqrt{3}}) -
**C.**

(sqrt{3}) -
**D.**

(frac{10}{sqrt{3}})

##### Correct Answer: Option A

##### Explanation

(frac{x}{4}) = (frac{tan 60}{1})

x = 4 tan60

= 4(sqrt{3})

BD = 2x

= 8(sqrt{3})