</noinclude> <!-- 2. Draw and stitch on cardboard in equally spaced points: --> <gallery perrow=3 widths=200px> Image:StringArt-RightAngle.png|<center>'''a. A right angle'''</center> Image:StringArt-AcuteAngle.png|<center>'''b. An acute angle'''</center> Image:StringArt-ObtuseAngle.png|<center>'''c. An obtuse angle'''</center> </gallery>