# How to Form a Perfect Right Angle Using Just String?

This article would benefit from step-by-step photos. You can help wikiHow by adding photos to this article. Click here for instructions. Notice added on 2009-03-11.A perfect right angle whenever yo...
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## How to Make a Right Angle with a String and Two Sticks?

One wikiHow article on how to make a right angle with just a piece of string is simply a variation on the old 3-4-5 proportion method.While this has been used successfully for (probably) millennia,...
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http://www.wikihow.com/Make-a-Right-Angle-with-a-String-and-Two-Sticks

## How to String the Perfect Lacrosse Pocket?

In the sport of lacrosse, there is a high degree of flexibility in how players can customize their equipment. One of the major variables is how you can string the pocket. Differences in the lacross...
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http://www.ehow.com/how_6383273_string-perfect-lacrosse-pocket.html

## How to Solve Quadratic Equations to Form a Perfect Trinomial?

Perfect square trinomials, or perfect trinomials, are quadratic equations of the form xÂ²+2bx+bÂ². In other words, perfect trinomials are perfect squares. They can be factored to obtain an expressi...
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http://www.ehow.com/how_8449331_solve-equations-form-perfect-trinomial.html

## How does height affect angle ie a 90 degree roof angle at a 20 degree pitch with a building That projects 10 degrees what angle does the building meet the roof?

we add the 20 degrees to the 30digrees so it is 50

http://wiki.answers.com/Q/How_does_height_affect_angle_ie_a_90_degree_roof_angle_at_a_2...