Section 6-7 Volume of Section 6-7 Volume of Pyramids and ConesPyramids and Cones

Rectangular PyramidRectangular Pyramid

V=(1/3)lwhV=(1/3)lwh A rectangular pyramid is the ones that A rectangular pyramid is the ones that

you would view in Egypt built by you would view in Egypt built by Egyptians.Egyptians.

Triangular PyramidTriangular Pyramid

V=(1/3)(1/2)lwhV=(1/3)(1/2)lwh A triangular pyramid has a base of a A triangular pyramid has a base of a

triangle which is what makes it different triangle which is what makes it different from a rectangular pyramid.from a rectangular pyramid.

ConesCones

V=1/3BhV=1/3Bh A cone has a circular base. (An ice A cone has a circular base. (An ice

cream cone.)cream cone.)

 

QuestionsQuestions

1.) Find the volume of a triangular 1.) Find the volume of a triangular pyramid with the height of 4.6cm., width pyramid with the height of 4.6cm., width of 3.9cm. And the length of 1.7cm.of 3.9cm. And the length of 1.7cm.

2.) Find the volume of a rectangular 2.) Find the volume of a rectangular pyramid with a height of 1.6in., base of pyramid with a height of 1.6in., base of 0.8in. And length of 0.4in.0.8in. And length of 0.4in.

3.) What does a cone resemble?3.) What does a cone resemble?

BibliographyBibliography

http://www.pbs.org/wgbh/nova/pyramid/ehttp://www.pbs.org/wgbh/nova/pyramid/explore/khufu.htmlxplore/khufu.html

http://mathforum.org/dr.math/faq/http://mathforum.org/dr.math/faq/formulas/faq.cone.htmlformulas/faq.cone.html

http://www.mathsteacher.com.au/year8/chttp://www.mathsteacher.com.au/year8/ch10_geomcons/10_pyramid/spheres.htmh10_geomcons/10_pyramid/spheres.htm