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Pre-Algebra: Chapter 12-8
Pyramid and Cone Volume
Just like the we did for cylinders and rectilinear prisms, we calculate the surface area of the base and multiply it by the height (or altitude). BUT, if we did just that, we’d end up with cylinders or rectilinear prisms. SO, we have to remember that the formula for the pyramids and cones is just a little different.
Volume, `V=(Base Area * height) * (1/3)`. The `1/3` is the ONLY different part. Remember, for cones, the area of the base is `A=pir^2` and for a pyramid, it will be the base of the rectangle, triangle, trapezoid, pentagon, hexagon, octagon or whatever shape it is.
Algebra: Benchmark #5 Review
The classwork that we are doing is in preparation for this Thursday-Friday’s Benchmark #5. Most of the benchmark covers Chapters 10 and 13. Tonight’s homework is about Chapter 10. Bring your questions tomorrow for us to work out! 200 more points on the line for this test!!