Item 60 refers to the following diagram. Z
30°
X
10 m
Y
The diagram above, not drawn to scale,
shows the angle of depression of a point
X from Z is 30°. If X is 10 metres from Y,
the height of YZ, in metres, is
(A)
(B)
(C)
10 tan 30°
10 sin 30°
10 cos 30°
10 cos 60°