Question

if 5,7,12=25 , 4,27,9=196 , then 20,35,13=??
option a)36
b)49
c)45
d) none​

Answer 1

Answer:

Three telephone masts are used to triangulate locations.Mast B is due to west of Mast A.Mast C is 0.6 km from Mast B on a bearing of 136degree.

Show that the bearing of Mast C from Mast A is 213degree.