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KonstantinChe [14]
3 years ago
12

Show your work please!!!!!

Mathematics
1 answer:
sineoko [7]3 years ago
3 0

Answer:

67.5π m²

Step-by-step explanation:

See the diagram given with the question.

The angle moved by the radius line about the center to cover the shaded region is 300°.

As the radius(r) is known to be 9 m.

So, the area of the full circle is πr² = π × (9)² = 81π m².

Now, to cover the whole circle the radius line has to rotate 360° about the center.

Hence, for rotation of 360° the area obtained is 81π m².

Then for rotation of 300° the area obtained will be \frac{81\pi \times 300}{360} = 67.5\pi m². (Answer)

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iren [92.7K]

Answer:

B, but I can't read C

Step-by-step explanation:

the sum of any 2 sides must be longer that the 3rd.

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