# How to Sketch the Structure of the Silicon-Oxygen Tetrahedron?

The silicon-oxygen molecule is crystalline in shape. It is a chemical bond that follows the polygonal shape called a tetrahedron. A tetrahedron is a three-dimensional triangle. It has four sides...
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http://www.ehow.com/how_8512989_sketch-structure-siliconoxygen-tetrahedron.html

## What is the difference between two-dimensional sketch and an isometric sketch?

2D sketches show objects as you were looking them straight on, whether the front, side and rear views. There are four main types of pictorial (3D) drawing methods: isometric oblique planometric 1...
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http://wiki.answers.com/Q/What_is_the_difference_between_two-dimensional_sketch_and_an_...

## How many corners does the tetrahedron have?

A tetrahedron is a polyhedron, or three-dimensional solid, that consists of four triangular sides joined to create a pyramid-shaped solid. At each corner, three of the four sides meet, and there ar...
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http://www.answerbag.com/q_view/2399073

## What is the formula for the volume of a tetrahedron?

A tetrahedron is a polyhedron, or 3-D solid, which is pyramidal-shaped with four sides. Three of the sides meet at each point or vertex of the structure. The formula for the volume of a regular tet...
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http://www.answerbag.com/q_view/2399060

## How to Sketch and Work from a Sketch?

Sketching and painting is great fun, especially if you're sketching something that you like. Once you start painting and sketching, you'll probably find that your style of painting and sketching is...
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http://www.wikihow.com/Sketch-and-Work-from-a-Sketch