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Derek Topola

Introduction to Polygons - 1 views

onemathematicalcat.org/...polygons.htm

Math Education Polygons

shared by Derek Topola on 30 Jul 14 - No Cached
  • DEFINITION regular polygon
  • A regular polygon is a polygon whose sides all have the same length, and whose angles are all the same.
  • a regular quadrilateral(a square)
  • ...11 more annotations...
  • a regular triangle
  • a regular pentagon
  • a regular hexagon
  • a regular decagon
  • a regular nonagon
  • a regular heptagon
  • a regular octagon
  • DEFINITIONS rectangle, square
  • A rectangle is a quadrilateral whose angles are all right angles. A square is a rectangle with all sides of equal length.
  • Note: Every square is a rectangle. However, not every rectangle is a square. That is, there exist rectangles that are not squares.
  • each of these is a rectangle, but NOT a square
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