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Math Help - Radian Measure?

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    Radian Measure?

    P and Q are points on a circle, with centre O and radius 4cm, such that angle POQ = \theta radians. The perimeter and the area of the sector POQ are xcm and Acm squared, respectively. Given that x = 3A,

    a] show that \theta = 0.4.

    How do I find this? Any help is greatly appreciated.
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  2. #2
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    Quote Originally Posted by db5vry View Post
    P and Q are points on a circle, with centre O and radius 4cm, such that angle POQ = \theta radians. The perimeter and the area of the sector POQ are xcm and Acm squared, respectively. Given that x = 3A,
    a] show that \theta = 0.4.
    This page give you all the information you need.
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