12 Constructions and Loci

12.1
Example 3
Draw an accurate plan of the car park
which is sketched here. Use the scale
1 cm ≡ 10 m.
Estimate the distance AB.
Solution
MEP Y9 Practice Book B
The equivalent lengths are:
100 m ≡ 10 cm, 80 m ≡ 8 cm, 60 m ≡ 6 cm,
giving the following scale drawing:
A
In the scale drawing, AB = 11.7 cm, which gives an actual distance AB = 117 m
in the car park.
82
A
60 m
100 m
60 m
B
80 m
B