This creates problems in measurement. To insert an RF on your map, click Insert on the top bar menu, then select Scale Text. Scale Length Area Description Micro: 1 m – 1 km: 1 m 2 – 1 km 2: local Meso: 1 km - 100 km: 1 km 2 - 10,000 km 2: regional Macro: 100 km - 10,000 km: 10,000 km 2 - 100,000,000 km 2: continental Mega > 10,000 km > 100,000,000 km 2: global For instance, in physics an object or phenomenon can be called microscopic if too small to be visible. A large scale map covers a small area while a small scale map covers a large area. into Statement of Scale in the system of measurement shown in parentheses. Key Terms: 01. Line Scale (Linear Scale) : Give one example each of statement of scale in Metric and English system. Converting Between Scale Types of Historic and Modern Maps, page 3 Converting Representative Fraction (RF)/Ratio Scale to Lexical Scale English and Metric Measures of Length to use:. 1. (iii) It gives correct idea about distance. 1cm = 100,000 cm 2. Scale – this is a ratio and is shown as 1:50 000. Handy calculators are available online. 2. 2 inches represents 4 miles. Converting a Direct Statement Scale to an RF Scale To convert from a direct statement scale back to an RF scale, multiply the right side of the equation by 100 000, to change kilometres into centimetres. 2020 Zigya Technology Labs Pvt. method called a universal method because of its usefulness on global scale. 2020 Zigya Technology Labs Pvt. Do the same for a medium-scale map with an RF of 1:75,000 (1 inch to x miles). How to convert map scales (convert to ratio scale) - YouTube https://www.zigya.com/share/R0VFTjExMDA0MTQ3. 1:50000 can be shown as 1/50000 as well. - eanswers-in.com And for a small-scale map with an RF of 1:225,000 (1 inch to x miles) 2. Graphic map scale: Fractional map scale: The fractional method for portraying the scale of a map uses a representative fraction to describe the ratio between the map and the real world. As with representative fractions, verbal scales are often used on large-scale maps and planning documents, most frequently used by civil engineers. R. F. : 1 : 200000 2. Ltd. Download books and chapters from book store. 1:126,720 (into miles) 4. Linear Scale. Question 3(i) 5 cm represents 10 km Answer: Representative Fraction Distance on Map = 5 cm Distance on Ground = 10 km Representative Fraction = \(\frac{5}{10}\) = \(\frac{1}{2}\) km or 2,00,000 Therefore representative fraction = 1 : 2,00,000 cm. These are: 1. 1 cm represents = 1000000 ÷ 5 =200000. Each map is at a different scale and expresses the scale in a different form: bar scale, statement of equivalency and representative fraction.Before you start the exercises you can click on the buttons below to review the concept of scale, how to convert units, convert fractions to decimals and/or use a protractor. Question 3(ii). 232, Block C-3, Janakpuri, New Delhi, Fractions scale shows, in how many pieces a piece minimized. Here such a scale means that one unit of measurment on the map is equal to 50000 of the same unit on the ground. 1 cm represents = 50000 cm or 500 metres. You will find them on some smaller scale maps but not as often as you will representative fractions. If the R.F. A ratio or representative fraction using ratios to measure and calculate distances 2. Scale tells the size relationship between the map or model and the real earth. 2. 1. © ), it means that the R.F. They are called small scale because the representative fraction is relatively small. The numerator in fractions scale is stable as 1. Common Length and Distance Conversions ; Length or Distance Converter To convert a Representative Fraction scale to a direct statement scale, divide the denominator by 100000, to change centimetres into kilometres. 3. 1: 50,000 (into metres) In Representative Fraction (R.F) values are represented in ratio format. It can be used in all countries and also termed as International Scale. To effectively use maps you need to convert measurements from map units to ground units. It can be written in three ways, the verbal scale, the graphic scale, and the representative fraction (RF) or fractional scale. Convert the given Statement of Scale into Representative Fraction (R. F.). 18 Practical Work in Geography There are at least three ways in which this relationship can be expressed. The reduction of an area is known as the scale of a map. 1" represents 2 miles.4. Convert the representative fraction or ratio to a direct statement scale. Convert the given Statement of Scale into Representative Fraction (R.F.) For example, one centimeter on the map equals 100,000 centimeters, or one kilometer, on the Earth. 232, Block C-3, Janakpuri, New Delhi, 5 cm represents = 10 km or 1000000 cm. ): An R.F. Representative Fraction (R.F.) 1600000 X 5 = 800000 divided by 100000 = 80 km. Delhi - 110058. 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