A forest reserve of $125$ $\mathrm{km}^2$ is shown on a drone map by an area of $5$ \(\mathrm{

Question

A forest reserve of $125$ $\mathrm{km}^2$ is shown on a drone map by an area of $5$ $\mathrm{cm}^2$. Find the scale of the drone map in the form $1:n$. Find the length of a river on the map with an actual length of $7.86$ km. Correct your answer to $3$ significant figures. Find the actual area of a campsite if its area on the map is $1.2$ $\mathrm{cm}^2$.

Accepted Answer

(a) $1:500000$ (b) $1.57$cm (c) $30$km$^2$

Ratio, Rate and Speed - Ratio, Rate and Speed - General

Ratio, Rate and Speed - Ratio, Rate and Speed - General