On a map with a representative fraction of $\frac{1}{3r}$, the area of a garden is $20$ \(\mathr

Question

On a map with a representative fraction of $\frac{1}{3r}$, the area of a garden is $20$ $\mathrm{cm}^2$ and the length of a road is $6$ cm. Find the area of the garden on a second map which has a representative fraction of $\frac{1}{2r}$. Find the scale of a third map, in terms of $r$, if the road length on this chart is $8$ cm.

Accepted Answer

(a) $45\text{ cm}^2$. (b) $4:9r$.

Congruence and Similarity - Map Scales

Congruence and Similarity - Map Scales

Solution:

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