Question

The area of Lusaka town ward on a map of scale 1:100000 is 200cm² what is the actual area on the ground?

Answer 1

Step-by-step explanation:

One centimeter on a 1:1 000 000 scale map is equal to 1 000 000 centimeters (or 10 000 meters – 10 kilometers) on the ground; four centimeters on the map therefore represents 40 kilometers on the ground (10cm = 100km). Alternatively, one inch on the map is equal to 16 miles on the ground.

Answer 2

Answer:

Concept :

Multiply the length by the width of the field to find the area of a field with right angles at the corners. For instance, a field that is 100 metres long and 100 metres wide has a surface area of 10,000 square metres (m2). A square metre is a rectangle with sides that are each one metre long and wide.

Step-by-step explanation:

Given :

The area of Lusaka town ward is 200 $cm^{2}$

Map of scale = 1:100000

To find :

The actual area on the ground ?

Solution :

= $(\frac{100000\sqrt{200} cm}{100000cm} )^{2}$

=  200/1 $km^{2}$

= 200 $km^{2}$

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