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Ilia_Sergeevich [38]
3 years ago
9

PLEASE HELP! 18-20 PLEASE HELP ME

Mathematics
1 answer:
enyata [817]3 years ago
7 0

Answer:

32

Step-by-step explanation:

ez as pie

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1)Area of circle: 64\pi

2)Area of semicircles: 128\pi

3)Area of quarter-circles: 128\pi

4)Total area of pattern: 320\pi

Step-by-step explanation:

r = 8cm

Given: 1 circle, 4 semicircles, and 8 quarter-circles.

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1) A = \pi r^{2} where r = 8

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2) 4 semicircles = 2 circles

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3) 8 quarter-circles = 2 circles

Therefore, the answer here is the same as the answer for #2!

4)There are 5 circles total because:

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8 quarter-circles divided by 4 (think about what "quarter" means) = 2 circles

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Now we need to find the area of 5 circles which is just 5*A

5*A = 320\pi

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