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http://s43.photobucket.com/albums/e364/bloome74/?action=view¤t=Cow.png

could you check my answer i got 4950pi ft^2

Could you show your solutions if I got a wrong answer :)

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I used the formula of 1/4 of a circle :)

That's correct.

Thanks! :)

You computed for 4 areas right? then added it :)

Actually you should use area of a sector, where angle is Pi/4.

Sorry Pi/2..:P

ohhh, so it is better to use the area of sector formula?

I tried it and it is the same :)

Area of sector is ( Theta/2) x r^2. WHere theta is in radians.

Well done..:)

http://www.wolframalpha.com/input/?i=pi%2F4%28100%5E2%2B40%5E2%2B50%5E2%2B30%5E2%29

@ganeshie8 Thanks, I made an arithmetic error with the area with radius 40 :)

okay :)

@Champs @ganeshie8 Thanks to both of you. :)

yup ! good thinking !! yw :)

It is better to use area of sector otherwise you'd face problem when the angle is not =90 deg.

You are welcome.:)

@Moongazer what is your answer for that problem? Thanks.

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