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What is the ratio of 30 cm to 2 m?

2 : 30

What is RF in drawing?

Explanation: Representative fraction is the ratio of the length of the object represented on drawing to the actual length of the object represented. 2. The scale of a drawing is given as 1:20. So the representative factor is that dimension in drawing to actual dimension. R.F.

How do you find occupation in topography?

1 Answer

  1. OCCUPATIONS — Occupations of people can be inferred directly from a topographical map.
  2. Some of the common ways by which the local inhabitants use the land are:
  3. Agriculture: If large tracts of land indicate cultivation of crops then most of the people are farmers or cultivators.

What does 3r mean in topography?

Answer: 3r means the relative depth or height of the peninsular well or sand dune respectively is 3 m.

What is full form RF?

Radio frequency (RF) is a rate of oscillation in the range of about 30 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals.

How wide is 1 cm?

Centimeters to Inches table

Centimeters Inches
1 cm 0.39 in
2 cm 0.79 in
3 cm 1.18 in
4 cm 1.57 in

What is the ratio of 10mm to 1 cm?

Step-by-step explanation: 1 Centimeter (cm) is equal to 10 millimeters (mm). To convert centimeters to millimeters, multiply the centimeter value by 10.

What does topographical mean?

1 : topographic. 2 : of, relating to, or concerned with the artistic representation of a particular locality a topographical poem topographical painting.

How is topography determined?

Measuring topography can refer to mathematical assessments of elevation and streamflow, or it can mean defining various geologic and geographic variables to describe a region. A topographic map’s contour lines derive from regularly measured or extrapolated elevations.

What is a full size drawing?

What is a full-size drawing? Architectural drawing sizes come in several different formats, which consist of the following: ARCH A – 9 x 12 inches (228.6 x 304.8 millimeters) ARCH B – 12 x 18 inches (304.8 x 457.2 millimeters) ARCH C – 18 x 24 inches (457.2 x 609.6 millimeters)

What is RF What is the advantage of RF?

In representative fraction (RF), the scale on the map is expressed in the numerical fraction. Its advantage is that it has universal application. Even people who live in foreign countries can find the distance on the map even if they are not familiar with the units of measurements of that country.

What is meant by RF in topography?

A representative fraction (RF) is the ratio of distance on the map to distance on the ground. An RF of 1:24,000 means one inch on the map equals 24,000 inches on the ground and one centimeter on the map equals 24,000 centimeters on the ground.

What do you mean by RF?

RF is short for radio frequency. RF is any frequency within the electromagnetic spectrum associated with radio wave propagation. These frequencies make up part of the electromagnetic radiation spectrum.

What is a causeway in topography?

Causeway: Causeway is a raised road or platform across a minor stream (not to be confused with a bridge). Its presence indicates areas of scanty or seasonal rainfall. It is found mostly in dry regions around streams and rivers. On toposheet it is shown by tiny curved black line.

What is the formula for scale factor?

The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Here, XYUV=123=4 . So, the scale factor is 4 . Note that when a two-dimensional figure is enlarged ( dilated ) by a scale factor of k , the area of the figure is changed by a factor of k2 .

What is the ratio of 1m to 1 cm?

Ratio of 1 mm to 1 cm is 1 mm:1 cm=1 mm:10 mm=1:10.

What is a scale diagram?

Scale Diagram – a drawing in which measurements are proportionally reduced or enlarged. from actual measurements.

Are there 10 mm in 1 cm?

Both centimeters and millimeters are derived from the meter, a measurement of distance used in the metric system. The metric system is based on decimals, there are 10mm in a centimeter and 1000mm in a meter. The base of the Greek-rooted words indicates that they are hundredths (centi) and thousandths (milli) of meters.

How do you scale down a model?

Divide the real life dimension of either length or width by that of the model. So, say the real life object had a length of 55m, and the model had a length of 50 cm, or 0.5m, then do 55/0.5. This is equal to 110. Take the reciprocal of the number you just had.

What are the types of scale drawing?

Types of Scales in Engineering Drawing

  • Plain Scale.
  • Diagonal Scales.
  • Comparative Scale.
  • Vernier Scale.
  • Scale of Chords 1. Plain Scale Plain scale is cleanly a line which is separated into a proper number of equal parts, first of which is further sub-divided into small parts.

What is a topographic map and what is it used for?

A topographic map is a detailed and accurate illustration of man-made and natural features on the ground such as roads, railways, power transmission lines, contours, elevations, rivers, lakes and geographical names. The topographic map is a two-dimensional representation of the Earth’s three-dimensional landscape.

What is RF scale?

Representative Fraction (R.F.): An R.F. scale is a ratio, or fraction, that expresses the mathematical relationship between MAP and LAND, such as 1 : 24,000. which means “1 map unit is equivalent to 24,000 land units.”

What is an example of a topography?

Topographical Features Examples include mountains, hills, valleys, lakes, oceans, rivers, cities, dams, and roads. Elevation – The elevation, or height, of mountains and other objects is recorded as part of topography. It is usually recorded in reference to sea level (the surface of the ocean).

What is depression in topography?

In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Erosion-related: Blowout: a depression created by wind erosion typically in either a partially vegetated sand dune ecosystem or dry soils (such as a post-glacial loess environment).

What size is 3 mm in CM?

Millimeters to centimeters conversion table

Millimeters (mm) Centimeters (cm)
2 mm 0.2 cm
3 mm 0.3 cm
4 mm 0.4 cm
5 mm 0.5 cm

What is dilated by a factor of 3?

The key thing is that the dilation value affects the distance between two points. As in the first example (dilation by a factor of 3), A is originally 1 unit down from P and 2 units to the left of P. 1*3 = 3, so A’ (the dilated point) should be 3 units down from P. 2*3 = 6, so A’ should be 6 units to the left of P.

What is a scale factor in math?

VOCABULARY. ● Scale Factor: The ratio of any two corresponding lengths in two similar. geometric figures.

What does a 1/100 scale mean?

Ratio scales If the scale of the plan is 1 : 100, this means the real measurements are 100 times longer than they are on the plan. So 1 cm on the plan represents a real length of 100 cm (1 metre)

How do you find the scale factor of a dilation?

To find the scale factor for a dilation, we find the center point of dilation and measure the distance from this center point to a point on the preimage and also the distance from the center point to a point on the image. The ratio of these distances gives us the scale factor, as Math Bits Notebook accurately states.

Is 20mm 2 cm?

Please provide values below to convert millimeter [mm] to centimeter [cm], or vice versa….Millimeter to Centimeter Conversion Table.

Millimeter [mm] Centimeter [cm]
20 mm 2 cm
50 mm 5 cm
100 mm 10 cm
1000 mm 100 cm

How many mm is 2.5 cm?

25 Millimeters

How many MM is a inch Inan?

25.4 mm

What size is a 1 50 scale model?

Model scales

Ratio Millimetres per foot
1:56 5.442 mm
1:55 5.644 mm
1:50 6.096 mm
1:48 6.350 mm

What is a scale factor example?

The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Example: Here, XYUV=123=4 .

What is the ratio of 10mm to 1cm?

Step-by-step explanation: 1 Centimeter (cm) is equal to 10 millimeters (mm).

What ring size is 7 cm in us?


India USA Diameter (in cm)
12 6 1.64 cm
13 6.5 1.67 cm
14 7 1.7 cm
15 7.25 1.74 cm

Which is bigger M or CM?

In addition to the difference in the basic units, the metric system is based on 10s, and different measures for length include kilometer, meter, decimeter, centimeter, and millimeter. This means that a meter is 100 times larger than a centimeter, and a kilogram is 1,000 times heavier than a gram.

What is 1/100th of a meter called?

1 centimeter

What is the scale factor of this dilation 2 3?

Answer: The answer is 2/3 because 6 to 9 is 2/3 dilation and 10 to 15 is also a 2/3 dilation.

How do you find the scale factor of two numbers?

You calculate the scale factor of similar figures by taking the ratio of corresponding parts of the two figures. When enlarging the shape, the larger measurement is the numerator, and the smaller measurement is the denominator.

What is the average ring size for a woman?


What size ring is 5.5 cm?

Ring Size Chart

Inner Circumference
Inch mm cm
2.09 53 5.3
2.13 54 5.4
2.17 55 5.5

How many cm is a size 12 ring?

2.14 cm

What is the ratio of mm to cm?

1 Millimeter (mm) is equal to 0.1 centimeter (cm). To convert mm to cm, multiply the mm value by 0.1 or divide by 10.

What is the scale factor of a drawing if the scale is 1 inch 6 feet?

The scale “1 inch to 6 feet” is equivalent to the scale “1 to 72,” because there are 72 inches in 6 feet. The scale “1 to 100” would make a scale drawing that is smaller than the scale “1 to 72,” because each inch on the new drawing would represent more actual length.

Post Author: alisa