Chapter 6.6, Problem 15PPS

To determine

To Find: The scale factor of the scale $4cm=2.5mm$

Answer to Problem 15PPS

The scale factor of $4cm=2.5mm$ is $\frac{16}{1}$ .

Explanation of Solution

Given information:

Scale of $4cm=2.5mm$

Concept and Formula Used:

Scale Factor: It is the ratio of a length on a scale drawing or model to the corresponding length on the real object.

To find scle factor both the quantities must have same unit.

Calculation:

The given scale is $4cm=2.5mm$

Also, $1cm=10mm$

Therefore, $4cm=4\times 10mm=40mm$

Scale factor is $=\frac{40}{2.5}=\frac{16}{1}$

Conclusion:

The scale factor of $4cm=2.5mm$ is $\frac{16}{1}$ .