The diagram depicts triangles $ABC$ and $BCD$; each one is right-angled. The labelled lengths are $AC = 8.2\,$cm, $BC = 5.3\,$cm, $CD = y\,$cm, $BD = 4.4\,$cm, and the angle at A is marked $x^\circ$. The figure is not drawn to scale.
(a)[3]
Calculate the value of $y$.
(b)[2]
Calculate the value of $x$.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct Pythagoras method” …