Presentation   constructing a heptagon
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  • 1. Stonemasonry Department 2013Prepare Templates and MouldsConstructing a Heptagon (approximation)
  • 2. Constructing a HeptagonBegin bymarking a circlewith the centrepoint C.C
  • 3. Constructing a HeptagonBA CBegin by marking acircle with thecentre point C.Mark thediameter of thecircle to formline AB
  • 4. Constructing a HeptagonBegin by marking acircle with thecentre point C.Mark the diameterof the circle to formline ABUsing centrepoints A and Band using BC as aradius constructarcs intersectingthe large circle toform points Dand EBA CD E
  • 5. Constructing a HeptagonBegin by marking acircle with thecentre point C.Mark the diameterof the circle to formline ABBA CD EUsing centre pointsA and B and usingBC as a radiusconstruct arcsintersecting thelarge circle to formpoints D and EMark lines BDand CE to formpoint FF
  • 6. Constructing a HeptagonConstruct an arcwith centre pointB and radius BFBA CD EF
  • 7. Constructing a HeptagonConstruct an arcwith centre pointB and radius BFBA CD EFMark the diameterof the circle to formline AB
  • 8. Developed by The Stonemasonry DepartmentCity of Glasgow College2013