Question

find the surface area of the earth whose diameter is 12756 kms​

Answer 1

Step-by-step explanation:

radius of the earth =12756/2= 6378

surface area of the earth = 4πr^2

= 4*22/7*6378*6378

= 511391684.57kms

Answer 2

The surface area of earth is 511391684.571 sq.km.

Step-by-step explanation:

Diameter of earth = 12756 kms

Radius of earth = $\frac{Diameter}{2}$

                         = $\frac{12756}{2}$

                         =6378 km

Total surface area of earth = $4 \pi r^2$

                                             = $4 \times \frac{22}{7} \times 6378^2$

                                             =$511391684.571 km^2$

Hence The surface area of earth is 511391684.571 sq.km.

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