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November 11th, 2009, 09:34 PM   #1
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Please Help me To Findout the Parameter if this circle



equation number 1 is given equation
equation number 2 is formula

please solve this equation answer should be 2(pi)a
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November 11th, 2009, 11:55 PM   #2
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Re: Please Help me To Findout the Parameter if this circle

The diagram given gives me the impression that the center of the circle is at (0,0). This leads me to assume that equation number 1 is the equation of the circle.
Thus the circle has radius a. The parameter/circumfrence of the circle is always 2(pi)r or (pi)d, if the radius is a then the parameter is 2(pi)a as required.
Hope it helped
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November 12th, 2009, 12:23 AM   #3
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Re: Please Help me To Findout the Parameter if this circle

yes u know this thing but my question is how to solve this prob
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November 12th, 2009, 03:40 AM   #4
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You've posted a picture and two equations. What, exactly, is the "question"?

Please be complete. Thank you!
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November 12th, 2009, 07:50 AM   #5
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Re: Please Help me To Findout the Parameter if this circle

i want to findout entire circle length by this forum. by using equation number 2
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November 12th, 2009, 04:34 PM   #6
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Re: Please Help me To Findout the Parameter if this circle

We'll integrate from to (so is positive) and multiply by 4 to get the circle's circumference.











See this: Trigonometric substitution
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