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Browse High School HigherDimensional Geometry
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Do cones or cylinders have edges?
Latitude and longitude.
MaximizIng the volume of a cylinder.
 Surface Area of a Sphere [03/25/1999]

How do I calculate the surface area of a sphere?
 Surface Area of Blocks Glued Together [09/09/2001]

Three cubes whose edges are 2, 6, and 8 centimeters long are glued
together at their faces. Compute the minimum surface area possible for
the resulting figure.
 Surface Area of Cones and Pyramids [09/27/2003]

Can the method for finding the surface area of a pyramid be used as
well to find the surface area of a cone?
 Surface Area of Earth (a Sphere) [8/30/1996]

Could you tell me the formula for determining the surface area of a
sphere?
 Surface Area of Solid Figures [9/18/1995]

HELP!! My math teacher was talking today about the surface area of
figures. I know about the area and how to find it, but I am confused
about this.
 Surface Areas of Soap Bubbles [11/30/1999]

If you build a frame shaped like a tetrahedron and dip it in bubble
solution, why do all of the faces of the bubble collapse to a point in
the middle of the tetrahedron?
 Swimming Pool Volume [07/26/2001]

How many gallons will an aboveground 24footdiameter pool 48 inches
tall hold?
 Swimming Pool Volume [02/28/2002]

What formula would I use to calculate the volume in gallons of a swimming
pool 135' x 70' with different depths of 3', 5', 8' and 11'?
 Taping a Cylinder [01/29/2001]

If I want to wrap sticky tape around a cylinder to cover it, what is the
relation between the diameter of the cylinder, the thickness of the tape,
and the angle between the diameter of the cylinder and the length of the
tape?
 Tesseract [04/25/2001]

Why does a tesseract contain eight cubes?
 Tesseracts and Hypercubes [05/22/1997]

Can you give me any good sources of information that a high school
geometry student would understand?
 Tetrahedron Projected on a Plane [10/29/1996]

How do you project a regular tetrahedron perpendicularly onto a plane to
get the maximum area shadow?
 Threedimensional Counterparts for Twodimensional Objects [03/04/1998]

Threedimensional counterparts for lines, polygons, perpendicular lines,
and collinear lines.
 ThreeDimensional Vectors [01/29/2003]

I am finding it very hard to understand and visualise the notion of a
vector in 3 dimensions.
 Three Holes Puzzle [05/02/2002]

A piece of plywood has three holes it it: a circular hole with a
diameter of 2 cm, a square hole with 2 cm sides, and a triangular hole
with a base and height of 2 cm. What object could completely plug AND
pass completely through each hole?
 A ThreeLegged Stool [06/26/2001]

Why is a threelegged stool steady, while a fourlegged stool can be
wobbly?
 Three Pyramids in a Cube [03/04/2002]

How can three pyramids fit exactly into a rectangular prism?
 Three Spheres in a Dish [08/04/1999]

What is the radius of a hemispherical dish if 3 spheres with radii of 10
cm are inside the dish and the tops of all 3 spheres are exactly even
with the top of the dish?
 TicTacToe on a Torus [03/29/2001]

Can you make a tictactoe game that won't end in a tie?
 Tipped and Partially Filled Frustum [12/14/2003]

A vessel in a plant where I work is the frustum of a cone on its side.
A liquid is contained in this section and pours out the end of the
cone section, therefore the liquid only takes up a certain portion of
the cone's volume. How can I compute the volume of the liquid?
 Topology [12/31/1997]

Is there a simple definition for homeomorphism? for topology?
 Topology [05/10/1997]

What is topology? What is knot theory?
 Topology [03/19/2001]

What is topology?
 Transformation between (x,y) and (longitude, latitude) [01/02/2002]

I have two questions on the transformation between (x,y) and (longitude,
latitude).
 Triangle Centroid in 3Space [12/30/1996]

Given three points in 3space that, when connected, form a triangle, what
are the coordinates of the centroid?
 Trigonometry in the Third Dimension [04/30/1998]

How does trigonometry change when we move into the third dimension?
 True and Magnetic North [04/08/2002]

How do you convert from true north to magnetic north?
 Two Interpretations of Dimensionality in Geometric Figures [03/16/2004]

A line is 1 dimensional, a square or rectangle is 2 dimensional, and a
cube is 3 dimensional. My question is what if you throw in parabolas
or circles or the absolute value function, etc.? A circle is kind of
like a parabola, but it is very much like a square, so I am thinking
it is 2dimensional. My conclusion is that the only 1 dimensional
object is a straight line, and a point is 0 dimensional, but I am not
confident that I am correct. Can you please clear this up for me?
 Two Polygons in 3D Space [01/31/2003]

How do you find the shortest distance between two polygons in 3D
space?
 Understanding Fourth Dimension Figures [07/05/1998]

Can you help me figure out the equations for fourth dimension figures
such as the tesseract and the hypertetrahedron?
 Union of Spherical Caps [09/10/2001]

Suppose I have two spheres of radius r1 and r2 respectively, and they
partly overlap. What's the formula for the overlapping volume?
 Units and Cylinder Volume [02/06/2003]

Find the volume and surface area of a cylindical storage tank with a
radius of 15 feet and a height of 30 feet.
 Unit Sphere [01/21/2002]

Is there such thing as a "unit sphere" that has to do with trigonometric
functions and the placement of points on said sphere?
 Using Geometry to Make a Roof [8/30/1995]

I'm not a student but a wood worker with a question on solid geometry. I
want to know how to calculate the angle on the sides of triangles in
order to form a cone shaped (not round but angular) roof.
 Using Vectors in Geometry and Physics [07/10/1998]

How do you use vectors in problems about medians, areas, and acceleration
and velocity?
 Variable Volumes in an Oblate Spheroid [12/21/2002]

We need to know how much water is in the tank at any given time.
 Vertices in a Prism [05/12/1999]

What is the formula for finding the number of vertices in a prism?
 Visible/Hidden Sides on Stacked Cubes [12/12/2001]

Find a formula for the number of sides hidden/visible on cubes when put
in different arrangements: a line; a double line; stacked three
dimensionally.
 Visualizing a Klein Bottle [08/19/1999]

What part of a Klein bottle can't be seen or represented in 3D? Is there
a technique that can help me visualize higher dimensions?
 Visualizing Skew Lines [05/16/2002]

What do you call lines that are not parallel but don't intersect?
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