2,4,5+Cylinders

Cylinders By: Will Davies, Remi Andre, Paul Carothers, and Blair Dodson The definition of a cylinder: A surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes. Formulas for cylinders:  Volume= Area of base × height = pi × r2× h

Use 3.14 for pi.

Notice that the base of the cylinder is a circle and the formula to get the are is pi × r2

 ** Example #1: ** 

Calculate Volume cylinder if r = 2 cm and h = 5 cm

Volumecylinder = pi × r2× h

Volumecylinder = 3.14 × 22× 5

Volumecylinder = 3.14 × 4 × 5

Volumecylinder = 3.14 × 20

Volumecylinder = 62.8 cm3

 ** Example #2: ** 

Calculate Volumec ylinder if r = 4 inches and h = 8 inches

Volumecylinder = pi × r2× h

Volumecylinder = 3.14 × 42× 8

Volumecylinder = 3.14 × 16 × 8

Volumecylinder = 3.14 × 128

Volumecylinder = 401.92 inches  3 Videos on cylinders: How do you find the volume of a cylinder? Watch this Video and you will find out. http://www.brainpop.com/math/geometryandmeasurement/volumeofcylinders/

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Cylinders in society:

Websites that include cylinders. This web site has all you really need to know about cylinders. http://www.mathsisfun.com/geometry/cylinder.html

Sources: http://www.brainpop.com/math/geometryandmeasurement/volumeofcylinders/ http://www.mcfd2.org/images/Fire%20Ext.jpg http://images.art.com/images/products/large/13719000/13719644.jpg http://www.spongenewmedia.co.uk/images/coke-cans.jpg http://www.ozoneservices.com/products/OLO/images/tank/01-b.jpg http://carolineknox.com/lamp%20post.jpghttp: //www.basic-mathematics.com/volume-of-cylinders.html