Sam Z. answered • 10/09/20
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4.3
(12)
Math/Science Tutor
To get the area f a circle the formula is r^2pi.
The blue circle=8.7^2*3.14=237.787
/360=.6605
*80=50.842
Green=7.3^23.14=167.415
/ 360=.465
*100=46.5
There's more to this than I thought .If the arcs were adbf and aebf; it'd be easier.
Sam Z.
They got the portion on the top of the cones. 46.5 refers to the whole green cone. As for the top space; it'll take some time.
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10/09/20
Joseph C.
Hi again, if there's any way you could help me solve this question because I've been trying for the past 2 days and I can't figure it out. It would be really helpful!
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10/12/20
Joseph C.
Hello Sam, thank you for your help. But on the back of the book, it says that the answer is 4.69 cm^2 and you got 46.5 for the green shaded area, if you may check and see what's wrong, that would be great. I await your response.10/09/20