Find the distance between A and D, if on the map they are 6.6 cm apart.
Distance between A and D on the map = 6.6 cm
Scale shows that 1 cm = 20 km
∴ 6.6 cm = 6.6 × 20
= 132.0 km
∴ The actual distance between A and D = 132 km
Find the distance between A and B, if on the map they are 4 cm apart.