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M316L Chapter 8 2D Figures

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Right, obtuse and acute; Equilateral, isosceles, scalene; Sum of internal angles is 180 degrees; ... Kite; Rhombus; Rectangle; Square; Others. More on 2d figues ... – PowerPoint PPT presentation

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Title: M316L Chapter 8 2D Figures


1
M316L Chapter 82D Figures
  • Instructor Ricardo Teixeira
  • August 31st, 2007

2
Classification of shapes
  • Simple and nonsimple curves
  • Closed and open curves
  • Curvy and straight
  • Symmetries
  • Concave and convex
  • Polygons
  • Circles.

3
Triangles
  • Rigid structure
  • Right, obtuse and acute
  • Equilateral, isosceles, scalene
  • Sum of internal angles is 180 degrees
  • Congruence.
  • True or False? Equilateral triangles are
    isosceles.

4
Quadrilateral
  • Trapezoids
  • Parallelogram
  • Kite
  • Rhombus
  • Rectangle
  • Square
  • Others.

5
More on 2d figues
  • Sum of the interior angles of a polygon
  • Circle, radius, diameter, chord
  • Distance between two points
  • Review of slope
  • Venn diagram

6
Exploration 8.7
  • In words, what do you see?
  • Look for triangles, quadrilateral
  • Any congruent figures?
  • Trapezoids, hexagon?
  • Any symmetry?
  • Reproduce thisfigure from memory.
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