30 60 90 right triangle so ratio of short leg : long leg : hypo = a : a√3 : 2a if short leg = 10 long leg = 10√3 and hypo = 2 x 10 = 20
so a = 10√3, c + d = 20 also small triangle on right is 30 60 90 right triangle hypo = 10, short leg d = 5 and long leg b = 5√3 if d = 5 then c = 20 - 5 = 15
