An easy trigonometry question. (:

Question

---

A right traingle has an hypotenuse of 10. the triangle has a 30 degree angle. both x and y are uknown. solve x and y. please show work. (: thanks so much.

Answer 1

use the cos and sin rules.. so  if x is adjacent to 30 degrees then cos(30)= x/10 therefore x= 10cos(30). The opposite side which would be y which will be sin(30)=y/10 therefore y=10sin(30)

to cheak it u can put in (10sin(30))^2+(10cos(30))^2 which would = to 10^2 therefore the hypotenuse would be 10  ^_____^ tada!~