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moongazer Group TitleBest ResponseYou've already chosen the best response.1
dw:1344582621979:dw
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
find the area of sector I got (128pi)/9 but my book says 35.45 What is the correct answer?
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
radius=8 \[\theta=80degrees\]
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
I double checked it and I am always getting (128pi)/9 or 44.68
 one year ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
Area of sector = pi*r^2 * theta/360°
 one year ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
Sub in values: pi*8^2 * 80/360 = 128pi/9
 one year ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.1
I'm pretty sure you're correct
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
maybe the book has a typo Isn't it that Area of sector = (1/2) (r^2) (theta) theta is in radians
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
thanks :)
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
\[Area = \frac{1}{2} \times 64 \times 80 \times \frac{\pi}{180} \implies 44.65\]
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Just trying..
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
@waterineyes I think it should be 44.68 ? :)
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Actually it can be: \[Area = 44.698\]
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
As value of \(\pi\) is not exact so you cannot say about the exact value..
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Here we all are approximating this value..
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
ohh ok I get it :)
 one year ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Surely your book is carrying something wrong for this question.. You are right @moongazer
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
Thanks :)
 one year ago
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