Question

assuming the earth to be a sphere of radius 6370 of 75% of the Earth's surface is covered by water then find how many square kilometre is the area of the land​

Answer 1

Answer:

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》3/4th of earth surface is covered by water

》 1/4th earth surface is covered by land.

:. Surface area covered by land=1/4×4πr^2

》1/4×4×22/7×6270^2

》127527.4 Km^2

Answer 2

Answer:

✓ 3/4th of earth surface is covered by water

√ 1/4th earth surface is covered by land.

. Surface area covered by

√. land=1/4×4πr^21/4×4×22/7×6270^2

√ 127527.4 Km^2