document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1106476>Question 1106476</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the figure, OAB and OXY are sectors of a circle with centre O. What is the area of the shaded region AXYB.\r<BR>\n" );
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document.write( "Figure: https://imgur.com/a/uOKno  </SPAN>\n" );
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document.write( "You can work out the Area of a Sector by comparing its angle to the angle of a full circle.\r<BR>\n" );
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document.write( "angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150 ALIGN=MIDDLE  ALT=\"150\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2.4 ALIGN=MIDDLE  ALT=\"2.4\"   DISABLED_style= \"max-width:90%; height:auto;\" > of a full circle (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=360 ALIGN=MIDDLE  ALT=\"360\"   DISABLED_style= \"max-width:90%; height:auto;\" >)\r<BR>\n" );
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document.write( "you have two sectors: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY ALIGN=MIDDLE  ALT=\"OXY\"   DISABLED_style= \"max-width:90%; height:auto;\" > with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=9cm ALIGN=MIDDLE  ALT=\"r=9cm\"   DISABLED_style= \"max-width:90%; height:auto;\" > and central angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150 ALIGN=MIDDLE  ALT=\"150\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and sector <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OAB ALIGN=MIDDLE  ALT=\"OAB\"   DISABLED_style= \"max-width:90%; height:auto;\" > with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=7cm ALIGN=MIDDLE  ALT=\"r=7cm\"   DISABLED_style= \"max-width:90%; height:auto;\" > and central angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150 ALIGN=MIDDLE  ALT=\"150\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Area of the sector= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28theta+%2Api+%29%2F360+%2A+r%5E2 ALIGN=MIDDLE  ALT=\"%28theta+%2Api+%29%2F360+%2A+r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >   (when theta is in degrees) \r<BR>\n" );
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document.write( "Area of sector <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY ALIGN=MIDDLE  ALT=\"OXY\"   DISABLED_style= \"max-width:90%; height:auto;\" >:<BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY=+%28150+%2Api+%29%2F360+%2A+%289cm%29%5E2 ALIGN=MIDDLE  ALT=\"OXY=+%28150+%2Api+%29%2F360+%2A+%289cm%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY=+%285+%2Api+%29%2F12%2A+81cm%5E2 ALIGN=MIDDLE  ALT=\"OXY=+%285+%2Api+%29%2F12%2A+81cm%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY+=+33.75+%2Api%2Acm%5E2 ALIGN=MIDDLE  ALT=\"OXY+=+33.75+%2Api%2Acm%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Area of sector <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OAB ALIGN=MIDDLE  ALT=\"OAB\"   DISABLED_style= \"max-width:90%; height:auto;\" >:<BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OAB=+%28150+%2Api+%29%2F360+%2A+%287cm%29%5E2 ALIGN=MIDDLE  ALT=\"OAB=+%28150+%2Api+%29%2F360+%2A+%287cm%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OAB=+%285+%2Api+%29%2F12%2A+49cm%5E2 ALIGN=MIDDLE  ALT=\"OAB=+%285+%2Api+%29%2F12%2A+49cm%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OAB+=+20.417+%2Api%2Acm%5E2 ALIGN=MIDDLE  ALT=\"OAB+=+20.417+%2Api%2Acm%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the area of the shaded region AXYB:<BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OXY+-OAB=33.75+%2Api%2Acm%5E2+-20.417+%2Api%2Acm%5E2+=13.33%2Api%2Acm%5E2 ALIGN=MIDDLE  ALT=\"OXY+-OAB=33.75+%2Api%2Acm%5E2+-20.417+%2Api%2Acm%5E2+=13.33%2Api%2Acm%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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