Construction


Created by JSPgenerator.

JSPgenerator Source

function dial(meas1,meas2,centrex,centrey,radius)
{var p=FixedPoint(centrex,centrey,'')
 var q=FixedPoint(centrex,centrey-radius,'')
 var c=Circle(p,q,'')
 var calc=Calculate(10,30,'rotation','A B - A B + / 3.14 * ',[meas1,meas2],'hidden')
 var r=RotationMeasuredAngle(q,p,calc,'red')
 Segment(p,q,'')
 Segment(p,r,'')}


a=Point(145,140,'label(A),traced')
b=Point(10,180,'label(B)')
c=Point(280,180,'label(C)')
v1=Distance(a,b,10,10,"'Distance A-B='",'')
v2=Distance(a,c,10,20,"'Distance A-C='",'')
dial(v1,v2,50,50,25)
FixedText(120,10,'Try to move A around so that','')
FixedText(120,20,'distance A-B keeps the same as','')
FixedText(120,30,'distance A-C','')
FixedText(120,40,'The dial will help you','')
FixedText(120,50,'It starts to turn when the distances','')
FixedText(120,60,'are not equal','')