Final answer:
The scale 1 cm: 3 mm indicates a conversion between centimeters and millimeters for the computer chip. Measurements need to be properly scaled using multiplication or division based on the conversion factor. The proportion method is often used to convert measurements to the appropriate scale.
Step-by-step explanation:
The scale of a computer chip is 1 cm: 3 mm. To understand how this scale affects the answers in parts (a)-(c) of the given question, we need to convert millimeters to centimeters or vice versa. Since 1 cm = 10 mm, the scale means that for every centimeter on the computer chip, the real size is 3 millimeters. To apply this scale to various measurements, we would typically multiply or divide the measurements by the scale factor or its reciprocal depending on the direction of the conversion.
For example, if we use the scale 1 cm = 0.5 m (from Example 3.3.4.5), and a scale measurement is given in meters, we would set up a proportion to convert meters to centimeters to find the actual measurement. For instance, if the scale measurement is 0.25 m, the actual measurement in centimeters would be 0.25 m × (100 cm / 1 m), resulting in 25 cm.
In summary, understanding the relationship between units of measurement is crucial, and carefully converting between these units will yield the correct scaled measurements for the computer chip model.