???????????? "measures" ???????????????? tri the simbel..."="... isosaleez triangel: base=3 & other 2 sides =5... hite=4.7697, area=7.1545, rim-leng=13... top point=(0,4.7697)... angels: 72.5424 deg, 72.5424 deg, 34.9152 deg... inside serkel: radius=1.10069, senter=(0,1.10069)... outside serkel: rad=2.62073, senter=),2.149)... note: (0,0) is at middel av base