Answer the following questions in about 30 words:
What are the two different systems of measurement?
The two different systems of measurement are the Metric system and the English system.
Give one example each of statement of scale in Metric and English system.
Metric system example: '5 cm represents 10 km' or '1 cm represents 100 metres'. English system example: '2 inches represents 4 miles' or '1 inch represents 1 yard'.
Why is the Representative Fraction method called a Universal method?
The Representative Fraction method is called a Universal method because it expresses the ratio between map distance and ground distance measured in the same units, making it applicable across all measurement systems.
What are the major advantages of the graphical method?
The graphical method allows direct reading of distances from the map. It can display distances in different units like metres and kilometres simultaneously, and can be divided into subdivisions for precise measurements.
Explanation
The textbook context clearly identifies Metric and English as the two measurement systems. Examples of statement of scale are directly provided in the conversion exercises. The Representative Fraction is universal because it uses the same units for both numerator (map distance) and denominator (ground distance), eliminating unit confusion. The graphical method's advantages are inferred from Figure 2.2 showing direct distance reading and the subdivision instructions for precise measurements.