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OpenStudy (anonymous):
My problem is attached, Thanks!
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OpenStudy (anonymous):
Here,
OpenStudy (amistre64):
area of pie section - area triangle section = area of shaded section
OpenStudy (anonymous):
I got 315.18, which looks entirely different from everything else...
OpenStudy (amistre64):
2pi/3 is the radian measure of 120 degrees
OpenStudy (amistre64):
2pi/3* 24^2 ----------- = area pie shape 2
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OpenStudy (amistre64):
thats an area of 192 pi right?
OpenStudy (amistre64):
the area of the triangle = 24^2 sin(120)/2
OpenStudy (amistre64):
b is looking more right
OpenStudy (anonymous):
The possible answers look like steps rather than final answers, is that true?
OpenStudy (amistre64):
they look like 'exact' answers as opposed to approximate decimals
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OpenStudy (amistre64):
2pi/3 has a sin of sqrt(3)/2 24*24*(sqrt(3)) ------------- = 144sqrt(3) 2 * 2
OpenStudy (amistre64):
192pi - 144sqrt(3) = area shaded spot if i dint mess up
OpenStudy (amistre64):
and thats b
OpenStudy (anonymous):
Thanks!
OpenStudy (amistre64):
youre welcome :)
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