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right triangle
(redirected from right triangles)

   Also found in: Dictionary/thesaurus 0.01 sec.
right triangle [′rīt ′trī‚aŋ·gəl]
(mathematics)
A triangle one of whose angles is a right angle.


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Appendix 1: Protractor uses The protractors can be used: * to provide problems requiring justification or proof; * to measure angles; * as inclinometers; * to draw scale diagrams of right triangles.
That is, while they visually noticed that the 12" by 3" rectangle was composed of two 6" by 3" rectangles without physically trying to put together the smaller pieces, neither of the children could figure out how two isosceles right triangles made a 3" by 3" square.
This pivotal compilation illustrates the proper way to use geometry to build a structurally sound dwelling; it also shows that Chinese mathematicians understood pi (the seemingly-unending number by which we calculate the circumference of a circle) and various laws concerning right triangles.
 
 
 
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