PlotRegionHighlighter-package	PlotRegionHighlighter-package
arcAngle	arcAngle
centersLineSegmentIntersections	centersLineSegmentIntersections
createCircle	createCircle
drawArc	drawArc
envelopeArea_and_Perimeter	envelopeArea_and_Perimeter
findExteriorTangents	findExteriorTangents
generateEnvelope	generateEnvelope
PlotRegionHighlighter	PlotRegionHighlighter-package
tangentLine	tangentLine
