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Temka [501]
2 years ago
5

find the surface area a planet if its circumference is about 18,000 miles long. Round to the nearest thousand square miles

Mathematics
1 answer:
Furkat [3]2 years ago
7 0

The surface area of the planet is 103,184,713.4 miles².

<h3>What is the surface area?</h3>

A planet has the shape of a sphere.

The first step is to determine the radius of the planet from the circumference.

Radius = circumference / (π x 2)

18,000 / (3.14 x 2) = 2,866.24 miles

Surface area of a sphere = 4πr²

4 x 3.14 x ( 2,866.24²) = 103,184,713.4 miles²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

#SPJ1

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Answer:

3/8 is less than 11/12

Step-by-step explanation:

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The perimeter of a triangle is 56. The side lengths are x + 4, 3x + 7, and x + 9. What is the value of x?
Sidana [21]
<h3><u>Answer:</u></h3>
  • x = 7.2
<h3><u>Step-by-step explanation:</u></h3>
  • Perimeter: Side 1 + Side 2 + Side 3
  • => x + 4 + 3x + 7 + x + 9 = 56
  • => 5x + 20 = 56
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<h3><u>Conclusion:</u></h3>

Therefore, the value of x is 7.2.

Hoped this helped.

BrainiacUser1357

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