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kyledsmith18
13.09.2019 •
Mathematics
1.
a circle with a 12 inch diameter is folded in half and then folded in half again. what is
the area of the resulting shape?
Solved
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Ответ:
If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter.
Given the formula
we have
When you fold the circle in half, the resulting figure has half the area.
So, you start with a circle with area![36\pi](/tpl/images/0229/8996/91fa1.png)
You fold it once and you have a semicircle with area![18\pi](/tpl/images/0229/8996/8fb91.png)
You fold it twice and you have a quarter circle with area![9\pi](/tpl/images/0229/8996/9087f.png)
Ответ:
Step-by-step explanation: