3/12/12 Aim : How do we calculate the area of triangles and rectangles?

How do we calculate the area of triangles and rectangles ?
   
                                                        Area 
- the are of a plane figure is the measure of the region endosed by the figure
- You can measure the area of a figure by counting the number of square units that arrange to completely fill the figure
Examples :

- For the area of a rectangle use the formula A= bh
- 'b' represents the base while 'h' represents the height of the rectangle

                 -For the area of a triangle use the formula A= 1/2bh or A= bh/2
        - 'b' represents the base while 'h' represents the height of the triangle







Example question :

 B= 12
 H= 8
 Area = ?





















                                                               Citations
Math salamanders, http://www.math-salamanders.com/shapes-clipart.html , 2010 -2011

Math planet , http://www.mathplanet.com/education/pre-algebra/introducing-geometry/triangles