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MAT 157 Section 10.5. Judy Sutor Scottsdale Community College. Learning Objectives. Define and name polygons Define triangles and quadrilaterals Compare and contrast properties of different quadrilaterals. Organize Quadrilaterals with a Venn Diagram. Polygons.

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mat 157 section 10 5

MAT 157Section 10.5

Judy Sutor

Scottsdale Community College

learning objectives
Learning Objectives
  • Define and name polygons
  • Define triangles and quadrilaterals
  • Compare and contrast properties of different quadrilaterals.
  • Organize Quadrilaterals with a Venn Diagram
polygons
Polygons

A polygon is a closed connected shape in a plane consisting of a finite number of line segments that do not cross each other.

geo boards
Geo-boards
  • Everyone make a triangle
    • What kinds of triangles do you know?
  • Make a quadrilateral
    • What kinds of quadrilaterals do you know?
  • Make a pentagon
  • Make a hexagon
  • Make an octagon
  • Make an n-gon
triangle and quadrilaterals
Triangle and Quadrilaterals
  • Triangle – a closed shape in a plane that consists of 3 line segments
    • Right triangle
    • Isosceles triangle
    • Equilateral triangle
    • Isosceles right triangle
  • Quadrilateral – a closed shape in a plane that consists of 4 line segments
    • What kinds of quadrilaterals do you know?
      • Square
      • Rectangle
      • Rhombus
      • Parallelogram
      • Trapezoid
special quadrilaterals
Special Quadrilaterals
  • All of the figures are quadrilaterals but fall into different categories based on other properties.
compare and contrast
Compare and Contrast
  • Use the information below for Activity 10Y page 262.
venn diagram
Venn Diagram
  • Venn diagrams are a convenient way to show how collections of items are related.
  • Let’s think about a Venn diagram that relates the set of even numbers from 1-20, the set of multiples of 4 from 1-20, and the set of factors of 20.
  • Create a Venn diagram that relates the set of whole numbers, the set of integers, the set of rational numbers, the set of irrational numbers, and the set of integers
  • Activity 10Z – Venn Diagrams Relating Quadrilaterals
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