Chapter 9 - Unit 1 - Area of Triangles and Quadrilaterals

The Area of a Rectangle:

A = LW

Area of a Square:

A = S^2

Area of a Parallelogram:

A = BH

where: A = area, B = Base, H = Height

Area of a Trapezoid:

A = 1/2(B,,1,,,+B,,2,,)H

where: A = Area, B,,1,, = Base 1, B,,2,, = Base 2, H = Height

Area of a Rhombus or Kite:

A = 1/2D,,1,,D,,2,,

where: A = Area, D,,1,, = Diagonal 1, D,,2,, = Diagonal 2