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Areas of Rectangles, Squares, Circles, Parallelograms, Triangles and Trapezoids

Areas of Rectangles, Squares, Circles, Parallelograms, Triangles and Trapezoids. By: Nicholas Currie, Patrick Ludemann and Nicholas Woo. Rectangles. In order to calculate the area of a rectangle you use the formula length times width is equal to area. . l= 20cm. w= 12cm. lw = 20 x 12

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Areas of Rectangles, Squares, Circles, Parallelograms, Triangles and Trapezoids

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  1. Areas of Rectangles, Squares, Circles, Parallelograms, Triangles and Trapezoids By: Nicholas Currie, Patrick Ludemann and Nicholas Woo

  2. Rectangles • In order to calculate the area of a rectangle you use the formula length times width is equal to area. l= 20cm w= 12cm lw= 20 x 12 A= 240cm2

  3. Square • To find the area of a square you use the formula side2 is equal area. s=12cm 122 A= 144

  4. Circle • To find the area of a circle you do the formula Pi x radius2. 5 P= 3.14 A= π5 2 A= 78.5

  5. Parallelograms • To find the area of a parallelogram use the formula Area equals base x height. b=10cm h=5cm A=bh A=10(5) A=50cm2

  6. Triangle • To find the are of a triangle use the formula Area equals base x height. h=4cm b=9cm

  7. Trapezoids • To find the area of a trapezoid use the formula Area equals half of base a +base b x height. a=10cm h=7cm b=19cm

  8. Credits

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