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 * __The Wonders of Area and Perimeter__

Exploring Perimeter and Area**

Perimeter- the distance around a closed plane figure. Non-overlapping figures- figures that have no piont in common (except for boundary points). Area- the number of non-overlapping squares of a given size that will exactly cover the interior of a closed plane figure. The Sum of Areas- If a figure is composed of non-overlapping regions A and B, then the area of the figure is the sum of the areas of regions A and B. The Perimeter of a Rectangle- The perimeter of a rectangle with base //b// and height //h// is given by: P= 2b + 2h. Area of a Rectangle- The area of a rectangle with base //b// and height //h// is given by: A= bh


 * Discovering how to find the area of triangles, parallelograms, and trapezoids**

Base of the traingle- any side of a triangle. Altitude of the triangle- a perpendicular segment from a vertex to a line containing the base of the triangle. Height of the triangle- the lenght of the altitude of a triangle. Area of a Triangle- For a triangle with base //b// and height //h//, the area, //A,// is given by: //A//= 1/2 //bh// Base of a parallelogram- Any side of a parallelogram Altitude of a parallelogram- a perpendicular segment from a line