Mathematics 4024 · O Level · Geometrical constructions

Geometrical constructions — practice question

The scale diagram represents a plot of land, $PQRS$. The scale is $1\text{ cm}$ to $20\text{ m}$.
(a)[2]

A path runs across the land. It is the same distance from $SP$ and $SR$. Use only a straight edge and compasses to construct the path.

(b(i))[1]

Draw the line that shows Priya’s walk.

(b(ii))[2]

Calculate the actual distance from $P$ to the point where Priya meets the path.

(c)[2]

The car park has an area of $2\text{ cm}^2$ on the scale drawing. Find the actual area of the car park.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: A correct angle bisector has been constructed.

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