Higher June 2023 Paper 1 Q22
22 \(ABCDEFGH\) is a cuboid.
\(AF = 6.8\) cm
\(FC = 13.6\) cm
Work out the size of the angle between \(FC\) and the plane \(ABCD\). (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| 30 | P1 | for a correct trig statement using angle \(ACF\), eg \(\sin x = \dfrac{6.8}{13.6}\) or \(x = \sin^{-1}\left(\dfrac{6.8}{13.6}\right)\) or \(\sin x = 0.5\) or \(\dfrac{6.8}{\sin x} = \dfrac{13.6}{\sin 90}\) oe |
| A1 | cao |
Additional guidance
Check diagram for working