septagon
Polygon with seven
A septagon is a polygon with seven sides and seven angles.
The term is informal; heptagon is the standard mathematical word.
The children were asked to draw a septagon for their geometry assignment.
Corner points of shapes
- edgesOuter limits or boundaries
- diagonalsLines joining opposite corners
- perimeterShape's outer edge length
- areaExtent of surface
convex · regular · irregular · nonagon · octagon · hexagon · pentagon · decagon
Angles inside a polygon
- exterior anglesAngles formed outside polygons
- planeWinged flying vehicle
- convexCurved outward externally
- concaveCurving inward, not outward
regular · irregular · tessellation · circumscribed · inscribed · apothem · centroid · bisector
Concerning circular movement
- sevenfoldSeven times over
- radialEmanating from center
- bilateralInvolving two parties
- reflectionReturned light or thought
axis · center · regular · balanced · proportional · congruence · uniformity · alignment
vertices
Corner points of shapes
- edgesOuter limits or boundaries
- diagonalsLines joining opposite corners
- perimeterShape's outer edge length
area · convex · regular · irregular · nonagon · octagon · hexagon · pentagon · decagon · dodecagon
interior angles
Angles inside a polygon
- exterior anglesAngles formed outside polygons
- planeWinged flying vehicle
- convexCurved outward externally
concave · regular · irregular · tessellation · circumscribed · inscribed · apothem · centroid · bisector · congruent
rotational
Concerning circular movement
reflection · axis · center · regular · balanced · proportional · congruence · uniformity · alignment
septum, September, septet, septuagenarian, septuple, septuplet, heptagon, heptagonal