Instructional Video
Khan Academy

Khan Academy: Cylinder Volume and Surface Area

6th - 7th Standards
Looks at how to find the volume and the surface area of a cylinder using the standard geometric formulas. [8:07]
Instructional Video
Math Mammoth

Math Mammoth: Pythagorean Theorem and Geometry 3: Volume of a Triangular Prism

7th
This video demonstrates how to find the volume of a triangular prism by first determining the altitude of the isosceles triangle base using the Pythagorean Theorem, and then inserting it into the volume formula. [2:46]