CHAPTER 4 – Areas of Polygons

What is the Formula for the Area of a Parallelogram?

How Do You Find the Area of a Parallelogram?

What is the Formula for the Area of a Triangle?

How Do You Find the Area of a Triangle?

What is the Formula for the Area of a Trapezoid?

How Do You Find the Area of a Trapezoid?

FINDING THE AREA OF A TRAPEZOID WITHOUT A FORMULA:

• Area of a trapezoid - averaging the two bases then multiplying by height (2:27)
• Area of a trapezoid - splitting it into two triangles (4:47)

What is a Composite Figure?

How Do You Find the Area of a Composite Figure?

MORE WORK ON COMPOSITE FIGURES:

• Finding the Area of Combined Shapes (2:44)
• Area of An Irregular Polygon (2:11)

Introduction to the Coordinate Plane

Polygons in the Coordinate Plane