How to find the area of different geometric shapes.

1. Let’s talk about shapes Areas of Geometric Figures

2. The Basics… Square Area = (side length)^2 Rectangle Area = base x height

3. The Triangle Area = (1/2) x base x height Two triangles make a rectangle, that’s where we get the formula

4. Trapezoids Area = (1/2) x height x (base1 + base 2)

6. Two diagonals run from one corner to the opposite

8. Pi = 3.14159265358979323846 = Area = (radius)^2 x Radius = distance from center to edge of circle

9. Pentagons where S is the length of any side N is the number of sides More help: http://www.mathopenref.com/polygonregulararea.html

10. But why is this Important?!?!?!

11. We see these shapes everyday!!!