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belka [17]
2 years ago
7

The diameter of the moon is about 3500 km. Approximate the surface area of the moon using the formula for the surface area of a

sphere, S = 4πr^2. Write your answer in scientific notation.
Mathematics
1 answer:
horrorfan [7]2 years ago
5 0

Answer:

3.8465 *10^7 square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula SA=4\pi r^2. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

SA=4\pi r^2\\SA = 4 \pi (1750)^2\\SA = 4 \pi *3,062,500\\SA =38,465,000

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. 3.8465 *10^7

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