This resource has been contributed by Winpossible, and can also be accessed on their website by clicking here - Getting Started - Surface Area and Volume
This mini-lesson introduces and walks you through the basic concepts of the surface area and volume. You'll learn it with the help of some examples, practice questions with solution, using video and explanation in own handwriting by the instructor that brings in an element of real-class room experience.
The surface area of an object is the sum of all the areas, of all the shapes that cover the surface of the object. Alternatively it can be said to be a measure of the number of square units needed to cover the outside of a figure.
The unit of measurement for this is square units such as cm2
, etc. The volume of a three-dimensional figure is the amount of “space” bounded by the figure. Alternatively it can be said to be a measure of the number of cubic units needed to fill the space inside an object. It is measured in cubic units such as cm3
, etc. For example, the surface area and volume of a rectangular box of length l
, width w
, and height h
is given by:
Surface area = 2(lw + wh + hl)
Volume = lwh
This FREE mini-lesson is a part of Winpossible's online course that covers all topics within Geometry. Click on the video below to go through it. If you like it, you can buy our online course in Geometry by clicking here.