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Math Help - Circles

  1. #1
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    jharkhand
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    Circles

    In the figure, two circles cut at A and B. P and Q are the centres of the circles. If <APB=90 and <AQB=60 then find the area of the shaded portion if AP=4cm.
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  2. #2
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    circles

    posted by snigdha

    AP=4 given
    AB=4times radical 2 property of 90 deg triangle with equal legs
    AQ= AB property of equilateral triangle

    Calculate the area of the two defined triangles.
    Calculate the two sector areas.
    Calculate the two segment areas.

    It is downhill from there on.


    bjh
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