The scale of a map is 1:20 000.
Given that the perimeter of the nature reserve on this map is 15 cm, what would be the perimeter (in cm) of the same nature reserve on another map with a scale of 1:35 000?
Juz need some confirmation of the answer.
Answer given is 6 cm but my answer is 8.57 cm (3 sig fig).
1m=100cm
10m=1,000cm
100m=10,000cm
1km=100,000cm
10km=1,000,000
1cm:20000cm
20000cm = 200m
Perimetre of the nature park
So it's 15 x 200m = 3000m/3km
The answer = 300,000/ 35000 = 8.57cm
True perimeter of the nature reserve = 15*20000 = 300000cm
Since it's length, the scale is directly proportional.
Perimeter on the other map = 300000 / 35000 = 8.57142cm