<?xml version="1.0" encoding="utf-8"?>
<CaR>
<Construction>
<Window x="8.799999999999999" y="6.3999999999999995" w="8.0" showgrid="true"/>
<Objects>
<Point name="P1" n="1" bold="true" large="true" x="5" actx="5.0" y="3" acty="3.0" fixed="true">Point at &quot;5&quot;, &quot;3&quot;</Point>
<Point name="P2" n="2" bold="true" large="true" x="13" actx="13.0" y="3" acty="3.0" fixed="true">Point at &quot;13&quot;, &quot;3&quot;</Point>
<Point name="A" n="3" xcoffset="0.35238095238095113" ycoffset="0.11428571428571388" keepclose="true" bold="true" large="true" x="11" actx="11.0" y="10" acty="10.0" fixed="true">Point at &quot;11&quot;, &quot;10&quot;</Point>
<Text name="Text1" n="33" type="thick" bold="true" large="true" x="1.5" y="11.0">移動P點使綠色三角形的面積為大三角形面積的一半。</Text>
<Text name="Text2" n="35" hidden="super" bold="true" large="true" x="1.5" y="6.0">Target=707</Text>
<Segment name="s2" n="6" type="thick" bold="true" large="true" from="P1" to="P2">Line segment from P1 to P2</Segment>
<Segment name="s4" n="9" type="thick" bold="true" large="true" from="P2" to="A">Line segment from P2 to A</Segment>
<Segment name="s6" n="12" type="thick" bold="true" large="true" from="A" to="P1">Line segment from A to P1</Segment>
<Midpoint name="B" n="15" type="thick" hidden="super" showname="true" bold="true" large="true" first="P1" second="P2">Midpoint between P1 and P2</Midpoint>
<Segment name="s8" n="18" type="thick" hidden="super" bold="true" large="true" from="A" to="B">Line segment from A to B</Segment>
<PointOn name="P" n="19" color="2" type="thick" showname="true" bold="true" large="true" on="s8" alpha="0.8122192273135671" x="9.375561545372866" y="4.31446540880503" shape="circle">Point on s8</PointOn>
<Parallel name="pl2" n="22" type="thick" hidden="super" bold="true" large="true" point="P" line="s2">Parallel line through P to s2</Parallel>
<Expression name="E1" n="34" showname="true" showvalue="true" x="1.5" y="9.5" value="round(1000*(x(A)-x(P))/2)" prompt="答案1">Expression &quot;round(1000*(x(A)-x(P))/2)&quot; at 1.5, 9.5</Expression>
<Intersection name="I2" n="23" type="thick" hidden="super" bold="true" large="true" first="pl2" second="s6">Intersection between pl2 and s6</Intersection>
<Intersection name="I4" n="24" type="thick" hidden="super" bold="true" large="true" first="s4" second="pl2">Intersection between s4 and pl2</Intersection>
<Segment name="s12" n="31" bold="true" large="true" from="I2" to="I4">Line segment from I2 to I4</Segment>
<Polygon name="poly1" n="32" color="1" background="true" bold="true" large="true" point1="A" point2="I4" point3="I2">Polygon A, I4, I2</Polygon>
</Objects>
</Construction>
</CaR>
