Seudónimo Seudónimo 19-10-2021 Mathematics contestada The points A, B and C in 3D space are such that: • AB = 10mm, AC = 17mm and BC = 28mm. • The angle of elevation from A to B is 20°. • The angle of elevation from A to C is 55°. Find the angle of elevation from B to C, to the nearest degree.
