Using the Law of Sines (sina/A=sinb/B=sinc/C for any triangle)
(sin40)/30=(sin(180-40)/2)/d
d=(30sin70)/sin40
d≈43.857mi
d≈44 mi to the nearest whole mile...
Yo sup??
by angle sum property we know that the sum of all angles in a triangle is 180
let the unknown angle be x
then,
x+60+90=180
x=180-150
x=30
Hope this helps
