The diagram shows an accurate drawing of triangle ABC.

  1. (a)

    By constructing appropriate lines on the diagram, mark the point P on AB such that P is equidistant from AC and BC.

  2. (b)

    Write down the bearing of P from A.

    Answer ... °

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Worked solution

15(a)

1. Construct the angle bisector of the angle formed by $AC$ and $BC$.

Using compasses and ruler, construct the angle bisector of ∠ACB\angle ACB. This is the locus of points equidistant from the two lines ACAC and BCBC.

2. Mark the required point on $AB$.

Let the constructed angle bisector of ∠ACB\angle ACB meet ABAB at PP. Mark this intersection point as PP.

Answer

PP is the point where the angle bisector of ∠ACB\angle ACB meets ABAB.

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