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moongazer Group TitleBest ResponseYou've already chosen the best response.1
dw:1344582621979:dw
 2 years 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?
 2 years ago

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

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

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

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

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

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

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

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

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

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

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

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