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Area Trapezium.ppt - MathXTC

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Area Trapezium.ppt - MathXTC Powered By Docstoc
					www.mathxtc.com   Area of a Trapezium
        • This is one in a series of Powerpoint slideshows to
          illustrate how to calculate the area of various 2-D
          shapes.
        • Start with the Rectangle, then move onto the
          Parallelogram.
        • After that select any of Triangle, Trapezium and
          Circle.
        • Please feel free to copy and modify any of these
          slide shows, but make sure you acknowledge the
          author when doing so.

                          Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height
           What is the area of
           What is the area
              this triangle?
           ofthis trapezium?

              B=base width




                     Copyright Tim Morris/St Stephen's School
                           TRAPEZIUM
            T=top width




L=length                                                         H=height

            What is the area of
             this trapezium?

               B=base width



           COPY THIS!
                      Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height

           What is the area of
            this trapezium?

              B=base width



                                        PASTE HERE!
                     Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height

           What is the area of
            this trapezium?

              B=base width



                                  FLIP VERTICALLY!
                     Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height

           What is the area of
            this trapezium?

              B=base width



                              FLIP HORIZONTALLY!
                     Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height

           What is the area of
            this trapezium?

              B=base width



                             TRANSLATE TO HERE!
                     Copyright Tim Morris/St Stephen's School
                          TRAPEZIUM
           T=top width




L=length                                                        H=height

           What is the area of
            this trapezium?

              B=base width
                                               T=top width


                         CHECK MEASUREMENTS!
                     Copyright Tim Morris/St Stephen's School
                         TRAPEZIUM
           T=top width




L=length         Area of the trapezium                         H=height
                  is ½ the area of this
                     parallelogram?



             B=base width
                                              T=top width



                    Copyright Tim Morris/St Stephen's School
                TRAPEZIUM
 T=top width




                                                      H=height

      Areatrapezium
½ (Base + Top) x Height

    B=base width
                                     T=top width



           Copyright Tim Morris/St Stephen's School
                TRAPEZIUM
 T=top width




                                                      H=height

      Areatrapezium
½ (Base + Top) x Height

    B=base width
                                     T=top width



           Copyright Tim Morris/St Stephen's School

				
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posted:11/10/2011
language:English
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