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Eduardwww [97]
3 years ago
9

Find the area in this picture

Mathematics
1 answer:
nikklg [1K]3 years ago
5 0
The area is 80 just time 10 and 2 and 4
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The perimeter of a quadrant of a circle is 71.4cm. Find its area ​
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Answer:

circle: 6490.9 cm², quadrant: 1622.7 cm²

Step-by-step explanation:

The circumference of the entire circle is known as 2πr and it is 4 times the given value, since a circle has 4 quadrants:

2πr = 4·71.4 = 285.6, so r = 285.6 / 2π ≈ 45.45

The area of a circle is πr², filling in the value for r we just found:

πr² = π 45.45² ≈ 6490.9 cm²

So the area of a quadrant is one fourth of that:

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The question about "its area" can denote the entire circle, or just the quadrant, so two answers are provided.

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2 years ago
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