MATH WEEK 1 and 2

• Triangles have been regarded as a symbol of the trinitarian belief by Christians
• A Filipino song entitled 'Tatsulok' originally performed by Bamboo has politically used the triangle to symbolize inequalities in our society
• Triangles


  • They have three sides
  • They have three interior angles whose sum is always equal to 180 degrees
  • They have a recognizable shape with a base and opposite vertex
• Shapes that do not belong to the group of triangles

  • Four-sided figure
• Set


  A well-defined group or collection of objects that share the same characteristics
• Elements


  The objects found in a set
• Representing sets


  Using capital letters from A to Z<|>Grouping elements in braces separated by commas
• Ellipsis


  Three dots used to indicate a set has many or infinite elements
• Subset


  A set where each element is also an element of a larger set
• Universal set


  The set that contains all the elements being considered
• Empty set/Null set


  A set with no elements, denoted by a circle slashed with a line
• Cardinal number of a set


  The unique counting number that corresponds to the elements of the set
• The cardinality of a finite set is the number of elements in the set
• The cardinality of an empty set is 0
• Alfred Whitehead said that to see what is general in what is particular and what is permanent in what is transitory is the aim of scientific thought
• Venn Diagram


  A diagram used to illustrate the relationship among sets
• Venn Diagram


  • A particular set may be highlighted by shading the regions containing the elements of the set