7. How many map sheets of size 1x1m require to plot a 20x20 km city using a scales of 1/500, 1/1000, 1/10000? 8. A square area of a land was measured on the ground, the length of one side was (500 m). What is the area in the unites (Donum, Olik, Hectare, Km²)? 9. A land was plotted by an engineer on a map having scale (1:5000) and its dimensions 15 cm x 20 cm. What is the area on a ground in Hectare unit?

Q: Consider a closed-polygon traverse whose corners have the following X and Y coordinates (in feet): A…

A:

Q: 2. A pieces of land 2500 m2 plotted on a map having scale 1:1000 what would be the area on a map.

A: Given Data  Area of land on ground (A) = 2500 m2  Scale of map (S) = 1:1000    Find the area of land…

Q: Given are elevations of each station of an area. Draw the contour lines for the topographic map and…

A: To draw the contour line for the topographic map

Q: 2, What formula do we use to find the radius of a plot?

A: Step:1Assume the area of the plot is circle Step:2Convert the acres to feet Step:3Use Area of circle…

Q: Find the scale ratio for the map described below. 1 mm (map) = 5 km (actual) The scale ratio is 1 to…

A: Introduction : The given question is related with surveying topic . In this question we are provided…

Coordinate Geometry of Survey

Coordinate geometry (COGO) is a method of inserting surveying or engineering data into geographic information system (GIS), computer-aided design (CAD), or mapping software. These data can be collected on the proposed construction site using standard surveying techniques and instrumentation or may be taken from existing maps, engineering plans, drawings, or records. Data gathered on the site includes coordinates of points, bearings, and distances between points. The data are noticed and noted through conventional surveying procedures, like a traverse or layout measurement series and it can be either digital or non-digital. The maps and plans are inclusive of boundaries, divisions, and other components, and these features are shown with coordinate values, the lengths, offset distance, and bearings between them.