An area of $1$ km$^2$ is represented by $4$ cm$^2$ on a map. Calculate, in km$^2$, the act

Question

An area of $1$ km$^2$ is represented by $4$ cm$^2$ on a map. Calculate, in km$^2$, the actual area of a volcanic crater which is represented by a circle of area $0.3$ cm$^2$ on the map. Find the scale of the map in the form $1:n$.

Accepted Answer

(a) $0.075$ km$^2$ (b) $1: 50 \ 000$

(E Math) 2025 CCHY P1 Q9

(E Math) 2025 CCHY P1 Q9