A lake has an area of 15,500 mi^2. Express in m^2?

Question

A lake has an area of 15,500 mi^2. Express in m^2?

Answer 1

5280 ft = 1 mile

1 m = 3.2808 ft

15,500 mi² x (5280 ft / mi)² x (1 m / 3.2808 ft)² = 4.01 x 10^10 m²

3 sig figs

Answer 2

15 500 mi^2 = 4.01448157 × 10^10 m^2

Answer 3

15,500 miles = 1.55 x 10^4 miles

15,500 miles = 24944832 meters = 2.5 x 10^7 meters

1.55 x 10^4 squared = 2.8 x 10^8 square miles

2.5 x 10^7 squared = 6.25 x 10^14 square meters

So: 2.8 x 10^8 square miles = 6.25 x 10^14 square meters.

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http://www.onlineconversion.com/

Answer 4

1 mile = 5280feet. 1 foot = 0.3048m.

15,500 mi² = 124.5 mi. x 124.5mi.

124.5mi x 5280ft/mi x 0.3048m/ft = 200,363.3m.

200,363.3 x 200,363.3 = 40,145,457,597m²

(Over 40 billion square metres).

Answer 5

1 mi^2 = 2 589 988.11 m2