answer: the angel abc is 30Β°,and the abc is a triangle where the angel bac is 90Β°
so ac is the half of 24=12ft,and from the pythagorean theorem we find ba
ba=βbc^2-ac^2=β576-144=β432=12β3ft
so bac is 12+12β3=12(1+β3)ft
Another question on Mathematics
Mathematics, 21.06.2019 13:50
Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point