The scale of a map is 1cm to 15km. What is the distance on land if the length from point P to point Q on the map is 20cm?
Show workings
If 1cm on the map represents 15km in reality, then 20cm on the map represents:
20 x 15 = 300km
Therefore, the distance on land from point P to point Q is 300km.
To determine the land distance between points P and Q, you can use a ratio comparing the centimeters on the map to the corresponding kilometers on land.
The scale of the map is given as 1cm to 15km. This means that for every 1cm on the map, it represents 15km on land.
If the length from point P to point Q on the map is 20cm, we can use this ratio to find the land distance.
20cm on the map represents:
20cm * (15km/1cm) = 300km
Therefore, the distance on land between points P and Q is 300km.