AV - Area of Rectangles and Parallelograms Lesson

Area of Rectangles and Parallelograms

In life, we measure many things for different reasons. For example, a carpenter is going to install a new floor in a kitchen. The carpenter needs to measure the length and width of the kitchen to find the area. The carpenter wants to order the right amount of flooring. Thus, the carpenter wants to be exact and use the correct units when measuring.

Before we talk about what units are appropriate, we need to define what we could be measuring.

Length: Length refers to the long side of any object.
Area: Area refers to the physical quantity that expresses the size of a surface.
Volume: Volume refers to how much space an object takes up.

Area

The area of a figure is the number of square units it takes to completely fill a space or surface. The area is measured in square units.

Area of a Rectangle

To find the area of a rectangle, multiply the length by the width. LaTeX: A=lw $A=lw$

Area of a rectangle with width and length
Area = length x width

Watch the video below to learn more about finding the area of a rectangle.

Area of a Parallelogram

To find the area of a parallelogram, multiply the base by the height. LaTeX: A=bh $A=bh$

Area of a parallelogram
Area = base x height
base and height noted

Watch the video below to learn more about finding the area of a parallelogram.

Area of Rectangles and Parallelograms Assignment

Download the "Area of Rectangles and Parallelograms Assignment" by clicking here. Be sure to work all of the problems on paper. You will use these problems and solutions to complete the "Area and Volume Homework Quiz 1." Remember you can always go back and review the lessons and videos for more help. Links to an external site.

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