(a(i))[5]
Calculate the angle of elevation of $T$ as seen from $C$.
(a(ii))[4]
Calculate the length $AC$.
(a(iii))[2]
Calculate the area enclosed by triangle $ABC$.
(b)[4]
Calculate the length of line segment $XY$.
Mathematics 0580 · IGCSE · Non-right-angled triangles
Non-right-angled triangles — practice question
Points A, B and C lie on horizontal ground. BT is a vertical pole. AT = 60 m, AB = 50 m, BC = 70 m and angle ABC = 130^{\circ}.