Esquema
M - Oblouky v obloukatuře
Matroš:
https://www.geogebra.org/m/e4eg3msq
https://en.wikipedia.org/wiki/Arch#Other_types
https://de.wikipedia.org/wiki/Bogen_(Architektur)#Tudorbogen
https://www.youtube.com/playlist?list=PLZnX5hHldKcIk-lUTsQ5XnDAghTmeWIJj
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