1. Area of Parallelograms
#36

2. A polygon is a closed figure formed by 3 or more straight lines.
VOCABULARY
A polygon is a closed figure formed by 3 or more straight lines.
A parallelogram is a quadrilateral with opposite sides parallel and opposite sides the same length.
A rhombus is a parallelogram with four equal sides.
The area of a parallelogram (A=bh) is the product of its base b and its height h.
The base of a parallelogram can be any one of its sides.
The height of the parallelogram is the perpendicular distance from the base to the opposite side.
A formula is an equation that shows a relationship among certain quantities.

3. The area of a parallelogram = bh. The area of a rectangle = lw.
FYI
You can use the formula for the area of a rectangle to write a formula for the area of a parallelogram. Imagine cutting off the triangle drawn in the parallelogram and sliding it to the right to form a rectangle.
The area of a parallelogram = bh The area of a rectangle = lw.
The base of the parallelogram is the length of the rectangle. The height of the parallelogram is the width of the rectangle.

4. I DO (foldable)
A= l w
4 m
3 m
A= b h
4 in
3 ½ in
2 in

5. WE DO (notes)
1) Find the area of the figure.
15 in.
9 in.

6. You DO (classwork)
ADV
Perimeter and Area of Parallelograms, Triangle, and Trapezoids #1-8
REG
Perimeter and Area of Parallelograms, Triangle, and Trapezoids #1, 3, 5, 8