<?xml version="1.0" encoding="utf-8"?>
<CaR>
<Construction>
<Window x="8.799999999999999" y="6.3999999999999995" w="8.0"/>
<Objects>
<Point name="B" n="1" color="1" showname="true" xcoffset="-0.23809523809523903" ycoffset="-0.23809523809523903" keepclose="true" bold="true" large="true" x="5" actx="5.0" y="5" acty="5.0" shape="circle" fixed="true">Point at &quot;5&quot;, &quot;5&quot;</Point>
<Point name="Q" n="4" type="thick" showname="true" xcoffset="0.019047619047617204" ycoffset="0.13333333333333286" keepclose="true" bold="true" large="true" x="10" actx="10.0" y="10" acty="10.0" shape="circle" fixed="true">Point at &quot;10&quot;, &quot;10&quot;</Point>
<Point name="A" n="8" color="5" showname="true" xcoffset="0.3714285714285701" ycoffset="0.14285714285714235" keepclose="true" bold="true" large="true" x="13" actx="13.0" y="9" acty="9.0" shape="circle" fixed="true">Point at &quot;13&quot;, &quot;9&quot;</Point>
<Point name="P" n="12" color="2" type="thick" showname="true" bold="true" large="true" x="12.552380952380952" y="3.8285714285714283" shape="circle">Point at 12.55, 3.83</Point>
<Text name="Text1" n="97" bold="true" large="true" x="2.076190476190475" y="10.457142857142857">圖中的圓分別以A和B為圓心。
移動P點使四邊形APBQ成為鷂形。</Text>
<Text name="Text2" n="99" hidden="super" bold="true" large="true" x="2.095238095238094" y="5.695238095238095">Target=285</Text>
<Segment name="s2" n="5" bold="true" large="true" from="B" to="Q">Line segment from B to Q</Segment>
<Segment name="s4" n="9" bold="true" large="true" from="Q" to="A">Line segment from Q to A</Segment>
<Segment name="s6" n="13" bold="true" large="true" from="A" to="P">Line segment from A to P</Segment>
<Segment name="s8" n="16" bold="true" large="true" from="P" to="B">Line segment from P to B</Segment>
<Line name="l2" n="19" hidden="super" bold="true" large="true" from="B" to="A">Line through B and A</Line>
<Polygon name="poly3" n="39" color="3" background="true" bold="true" large="true" point1="B" point2="Q" point3="A" point4="P">Polygon B, Q, A, P</Polygon>
<Midpoint name="M2" n="42" hidden="super" bold="true" large="true" first="Q" second="A">Midpoint between Q and A</Midpoint>
<Segment name="s10" n="57" hidden="super" bold="true" large="true" from="Q" to="P">Line segment from Q to P</Segment>
<Circle name="c16" n="90" color="5" bold="true" large="true" through="P" midpoint="A" acute="true">Circle around A through P</Circle>
<Circle name="c18" n="93" color="1" bold="true" large="true" through="P" midpoint="B" acute="true">Circle around B through P</Circle>
<Segment name="s18" n="96" hidden="super" bold="true" large="true" from="B" to="A">Line segment from B to A</Segment>
<Expression name="E2" n="100" showname="true" showvalue="true" x="2.114285714285713" y="8.876190476190478" value="round(100*x(P))" prompt="答案2">Expression &quot;round(100*x(P))&quot; at 2.1, 8.9</Expression>
<Expression name="E3" n="101" showname="true" showvalue="true" x="2.114285714285713" y="8.419047619047621" value="round(100*y(P))" prompt="答案3">Expression &quot;round(100*y(P))&quot; at 2.1, 8.4</Expression>
<Plumb name="p4" n="35" hidden="super" point="Q" line="l2" valid="true">Perpendicular line through Q to l2</Plumb>
<Plumb name="p6" n="45" hidden="super" bold="true" large="true" point="M2" line="s4" valid="true">Perpendicular line through M2 to s4</Plumb>
<Intersection name="I7" n="36" hidden="super" first="p4" second="l2">Intersection between p4 and l2</Intersection>
<Plumb name="p8" n="51" hidden="super" point="B" line="p6" valid="true">Perpendicular line through B to p6</Plumb>
<Circle name="c4" n="37" hidden="super" through="Q" midpoint="I7" acute="true">Circle around I7 through Q</Circle>
<Intersection name="I12" n="52" hidden="super" first="p8" second="p6">Intersection between p8 and p6</Intersection>
<Intersection name="T" n="38" hidden="super" showname="true" first="p4" second="c4" awayfrom="Q" which="second">Intersection between p4 and c4</Intersection>
<Circle name="c6" n="53" hidden="super" through="B" midpoint="I12" acute="true">Circle around I12 through B</Circle>
<Expression name="E1" n="98" showname="true" showvalue="true" x="2.11" y="9.3" value="round(100*d(P,T))+285" prompt="答案1">Expression &quot;round(100*d(P,T))+285&quot; at 2.1, 9.3</Expression>
</Objects>
</Construction>
</CaR>
