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Algebraic Proportions
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Comparing Congruent and Similar Figures
Comparing the volume of pryamids and prisms
Comparison of Surface Area and Volume
Comparison of volume for a pyramid and volume of a prism
Geometric Mean (Similar Triangles)
Geometric Mean using Algebra
Geometric Mean v2.0
Proportions Involving Word Problems
Ratio
Ratios
Ratios JB
Review of Similar Triangle Theorems 8.48.6
Scale Factors of Perimeter, Area, and Volume
Scale Factors of Perimeters
Similar Figures
Similar Figures....
Similar triangle theorem 8.4
similar triangle theorem 8.5
similar triangle theorem 8.6
Similar triangle theorem 8.7
Similar Triangles Theorem
Similar Triangles Theorem 8.5
SImilar Triangles Theorem 8.6
Surface Area
Surface Area of a Cone
Surface area of a Cylinder
Surface Area of Spheres
Volume of a Pyramid
Volume of a Sphere
Volume of Prisms
Surface Area of a Cone
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Tutorial #4
Surface Area of a Cone
Finding Surface Area of a Cone Steps
Step One Finding Slant Height
To find the slant height first you need
to use Pythagorean theorem. Insert for
a put in the height of the cone. For b
put in the the radius. Then solve:
(radius)²+ (height)²= (slant height)².
http://www.utdanacenter.org/k12mathbenchmarks/ images/tasks/coneswrapper_web.jpg
Step Two Solve for the Circumference
Then you find the circumference by
multiplying taking the radius then
multiply it by two and pi. The
circumference it the circle side of the
part of the circle.
http://wme.cs.kent.edu/kimpton/ measure_circle.html? index=/kimpton/measure_index. html&indexname=back+to+module
Step Three Solve for Part of The Circle
To solve you multiple the slant height by
the circumference and one half. The
formula is:
SA= 1/2 x circumference x slant height.
http://www.mariner.org/exploration/mm_images/ 1998_39_10EnglishQuadrant_large.jpg
Step Four Solving for Area of Circle
To solve for the area you need to multiply
the radius² times pi.
Formula:
Area= pi x radius squared
http://wme.cs.kent.edu/kimpton/ measure_circle.html? index=/kimpton/measure_index. html&indexname=back+to+module
Step Five Adding Together
The last step is to add everything together.
Now just add the area of the circle plus the
area of the part of the circle.
Formula:
SA= area of circle + area of part of circle
http://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Plus_sdkfdkfd.svg/400pxPlus_sdkfdkfd.svg.png
Interactive Sites
Interactive Cone
Interactive Cones Two
Real life Problems
Real Life Problems
(9 feet in diameter and 12 feet in height) Find out how much canvas it would take
to cover up the tepee ( hint: subtract the circle or don't add it)
How cones appear in Real Life
More Problems
More Problems One
More Problems Two
More Detail
More Detail
More Detail Two
More Detail Three
More Details Four
Tutorial #5
http://math.about.com/od/formulas/ss/surfaceareavol_2.htm
Deeper Insight
Practice Problems
Real Life Application of Surface Area of a Cone
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Surface Area of a Cone