Question

Earth has a diameter of about 2292 leagues long. What is the total surface area of earth? Rounded to the nearest whole number.

Answer 1

Answer: 16,503,616 leagues²

Step-by-step explanation:

Assume that the Earth is a sphere. Then, you need to use the formula for calculate the surface area of a sphere:

$SA=4\pi r^2$

Where r is the radius.

Divide the diameter by 2 to calculate the radius of the Earth:

$r=\frac{2,292\ leagues}{2}\\r=1,146\ leagues$

Substituting values into the formula  $SA=4\pi r^2$, you get that the total surface of the Earth to the nearest whole number is:

 $SA=4\pi (1,146\ leagues)^2=16,503,616\ leagues^2$