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Video Six: Area of Triangles

Video Six: Area of Triangles

Author: Shelly Hicks
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Tutorial

For next day

A Note for Next Day

 

Next day in class you will be required to get your netbook at the start of the lesson and go to the interactive activity on this website.

 

Video also on You Tube

Click here to view

 

The address ishttp://www.youtube.com/watch?v=SlifDYZ3Oj8&feature=youtu.be

Area of Triangles

Area of Triangle

Key Ideas:

Area of triangle is half of base X height

Formula for area of a triangle = left parenthesis b cross times h right parenthesis space divided by 2 space space space o r space space fraction numerator b space x space h over denominator 2 end fraction

We know this because any triangle is really half of a parallelogram.  Have a look at the diagram below to see this connection.