Tuesday, March 27, 2012

Pre-alg. HW + surface area and volume of cylinder.

HW: 1 - what is the surface area AND volume of a cylinder that has a diameter of 12cm and height 20cm?

2- what is the surface area and volume of a cone with radius =5m, height = 8m Remember you will need to find the slant height. Use Pythagorean theorem. 

3-  what is the surface area and volume of a square pyramid, with base 6in, height 4in? Remember you will need to find the slant height. Use Pythagorean theorem.

See videos below and previous posts for help... : )

This video shows the formulas that you should use to find the area of a cylinder. Remember that a cylinder is composed of two circles (which are the base) and one rectangle.




this video includes an example on how to find the area and volume of a cylinder.

Now the volume of a cone, and volume of a pyramid.

pyramid...

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