# Geometry

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### 17 Geometric Shapes You've Never Heard of

Strange Shape Names: Obsure and unusual geometric shapes and names of shapes, 17 weird shapes you probably don't know...

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### Volume of a Parallelepiped from 4 Coordinate Points

Parallelepiped, see-through view. (source: author) A parallelepiped is a 3-dimensional geometric figure whose six faces are parallelograms. The faces come in three pairs; each member of the pair has the same size,...

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### How to develop a Truncated Cone

Follow these instructions below to develop a truncated cone. A truncated cone is a conical shape which has had it's top cut off at an angle. Sometimes you might need to develop these truncated cones as duct elements....

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### How to divide an obtuse angle into 4 equal parts:

How to divide an obtuse angle into four equal parts.

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### Inscribed Circles and Hexagons | 7 Hard Geometry Problems

Geometry problems involving circles inscribed in regular hexagons and regular hexagons inscribed in circles can be solved the same way as problems involving circles and equilateral triangles. The key geometric...

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### Volume of a Square to Round Transition

How to calculate the volume of a square to round transition, round to square transition, easy volume formula and its derivation

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### Regular Polygon Tracing Patterns and Coloring Pages

Scroll to bottom of page for table of regular polygon facts including exterior angle measure, area, and perimeter. A regular polygon is a flat shape with straight sides where all the sides have the same length and all...

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### Volume of an Elliptical Cone

An elliptic cone is a cone whose base is an ellipse. If you take a flexible circle-base cone and gently squeeze the sides, you will make a shape that resembles and elliptical cone. To find the volume of such a cone, you...

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### Math Made Easy! How to Find the Area of a Circle

This geometry tutorial shows how to find the area of a circle. Included are math tips and easy to follow problems and answers for finding the area of a circle.

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### Names of Parts of a Circle -- Radius, Diameter, Arc, Circumference, and More

A circle is defined as a closed curve with constant curvature, or alternately as a closed curve such that each point on the curve is equidistant to a locus in the interior of the curve. There are also names and...

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