Question

Draw a linear scale to show primary division and secondary division when R.F. is 1:100000

Answer 1

Answer:

Scale

Precise geometric relationship between a map and the region it portrays.

- One of the most important characteristics of a modern map.

- Most maps are greatly reduced in size compared to their subjects, so scale is a small fraction.

Definition: Ratio of the size of the map to its subject:

Scale = distance on a map / distance on the ground

Example:

- Two points on the ground are 1000 m apart.

- Represented on the map by points only 1 cm apart

- Calculate scale as follows:

- 1 cm represents 1000 m

- 1000 m = 100,000 cm

- so 1 cm represents 100,000 cm

- so scale = 1 cm / 100,000 cm = 1/100,000

- Scale is a fraction, expressed in 3 ways:

- Representative Fraction (RF), e.g. 1:100,000

- Verbal Scale 'One cm represents one km'

- Graphic Scale - a line labelled with the distance it represents.

Graphic scale remains accurate if a map is enlarged or reduced. Verbal and RF scales do not.

On a graphic scale, the intervals must be convenient round numbers.

Explanation:

hope itz helps u no spam