Topographical Map Area Calculations

This video tutorial explains how to calculate the area on a topographical map. It covers the use of eastings and northings instead of length and breadth, and demonstrates how to count grids to determine the area. The tutorial also addresses calculating the area of shaded parts by counting complete, half, two-thirds, and one-third squares. The video concludes with a summary of the methods discussed.

What is the basic formula for calculating area in mathematics?

• Length minus breadth

• Length multiplied by breadth

• Length divided by breadth

• Length plus breadth

In a topographical map, what terms are used instead of length and breadth?

• Latitude and Longitude

• Eastings and Northings

• Height and Width

• X and Y coordinates

How many grids are counted between eastings 15 to 20?

• 5 grids

• 6 grids

• 4 grids

• 3 grids

What is the area of one grid in the topographical map?

• 1 kilometer square

• 2 kilometer square

• 1.5 kilometer square

• 0.5 kilometer square

How many complete squares are counted in the shaded part of the map?

• 5 squares

• 4 squares

• 3 squares

• 2 squares

What is the total area of half squares in the shaded part?

• 2 kilometer square

• 1 kilometer square

• 4 kilometer square

• 3 kilometer square

How is the area of two-thirds squares calculated in the shaded part?

• 1.6 kilometer square

• 3.0 kilometer square

• 2.0 kilometer square

• 2.6 kilometer square

What is the total area of one-third squares in the shaded part?

• 1.0 kilometer square

• 2.0 kilometer square

• 1.6 kilometer square

• 2.6 kilometer square

What is the final calculated area for the shaded part of the map?

• 10.2 kilometer square

• 11.2 kilometer square

• 9.2 kilometer square

• 8.2 kilometer square

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