Let tree's height = h
h/80 = tan 30
⇒ h = 80 tan 30
⇒ h = 80 * 1/√3
⇒ h = 46.19 ft
13 ft is the right answer
Answer:
There are 44 countries in Europe today, according to the United Nations. The full list is shown in the table below, with current population and subregion (based on the United Nations official statistics).