(a)[5]
Fencing is required around the perimeter of the field. The fencing is sold in rolls of length $20\text{ m}$. Calculate how many rolls of fencing are needed.
(b)[4]
Calculate the shortest distance from $B$ to $AC$ in the field.
Mathematics 4024 · O Level · Non-right-angled triangles
Non-right-angled triangles — practice question
The diagram represents a triangular field $ABC$. Here, $AB = 150\text{ m}$, $BC = 187\text{ m}$, and $\angle ABC = 112^{\circ}$.