MathematicsThe scale on a map is 1:20000. The area of a lake on the map is 1.6 square centimeters. Calculate the actual area of the lake.

The scale on a map is 1:20000. The area of a lake on the map is 1.6 square centimeters. Calculate the actual area of the lake.

Using the ratio 1:20000 in 1.6, we get,
1.6×1

{cm}^{2}

= 1.6×

{(20000)}^{2}

=1.6×400000000
= 640000000

{cm}^{2}

\frac{640000000}{10000}

= 64000

m^{2}

So, Option 2 is correct.

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