Mathematics 4024 · O Level · Pythagoras' theorem and trigonometry in 3D

Pythagoras' theorem and trigonometry in 3D — practice question

The cuboid is shown in the diagram. $EH=12$ cm, $HG=10$ cm and $GC=7$ cm.

(a)[3]

Show that, correct to 1 decimal place, $CE=17.1$ cm.

(b)[3]

Calculate the angle made by line CE and the base EFGH.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$7^2+10^2+12^2$” …