(a)[3]
Show that the height of the flagpole BD is 13.3 m, correct to 1 decimal place.
(b)[3]
Calculate the length of the rope CD.
Mathematics 0580 · IGCSE · Right-angled triangles
Right-angled triangles — practice question
The figure depicts a flagpole, BD, supported by two ropes, AD and CD. ABC lies on a straight line, and angle ABD = $90^{\circ}$. $AD=21.2$ m, $AB=16.5$ m and angle BCD = $48^{\circ}$. The diagram is not drawn to scale.