All angles of a triangle *always* equal to 180*. R=120 and two angles on a flat line also equal to 180. So, *180-120=60*. So *60+60+60*, all the angles of the triangle, equals to 180. So angle x=60.
Answer:
Yes, k = 1/3 and y = 1/3x
Step-by-step explanation:
⇒ 
The equation would be ⇒ 
Distance of the person from the building (x)
tan 24 = 20/x => x = 20/tan 24 = 44.92 ft
The height of the building above the height of the person and the distance of the person from the building forms two legs of right angled triangle.
Therefore, if h is the height of the building, then;
tan 31 = (h-20)/44.92
h-20 = 44.92 tan 31
h = (44.92 tan 31) + 20 = 26.99 + 20 = 46.99 ft
