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Triangles

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May 1, 2024 Updated May 12, 2025 17 minute read
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Triangles, fundamental shapes in geometry, are polygons characterized by three sides, three angles, and three vertices. Their study forms a cornerstone of mathematics, offering a rich tapestry of properties, classifications, and applications that span numerous disciplines. From the ancient pyramids to modern technological advancements, triangles have played a pivotal role in our understanding and shaping of the world.

Path to Triangles

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We've curated 14 courses to help you on your path to Triangles. Use these to develop your skills, build background knowledge, and put what you learn to practice.
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Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Triangles.
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Campanus of Novara and Euclid's Elements
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Is the classic work on geometry, written by Euclid around 300 BC. It includes a section on the geometry of triangles.
Campanus of Novara and Euclid's Elements (Boethius....
Hardcover
$$$$
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Advanced Euclidean Geometry
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Comprehensive treatment of advanced Euclidean geometry, including the geometry of triangles.
Advanced Euclidean Geometry (Dover Books on...
Paperback
$$
Advanced Euclidean Geometry (Dover Books on...
Kindle Edition
$
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Geometry: Euclid and Beyond
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Provides a comprehensive introduction to geometry, covering topics such as triangles, circles, polygons, and conic sections. It is written in a clear and concise style, and includes numerous exercises and examples.
Geometry: Euclid and Beyond
Paperback
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Geometry: Euclid and Beyond
Kindle Edition
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Deductive Geometry
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Classic work on the geometry of triangles. It provides a thorough treatment of the subject, including many theorems and proofs.
Deductive Geometry (Dover Books on Mathematics)
Kindle Edition
$
Geometry for Enjoyment and Challenge
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Collection of challenging and enjoyable problems in geometry, including many problems involving triangles.
Geometry for Enjoyment and Challenge
Paperback
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Geometry for Enjoyment and Challenge
Kindle Edition
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Geometry and the Imagination
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Classic work on the foundations of geometry. It includes a section on the geometry of triangles.
Geometry and the Imagination (AMS Chelsea...
Hardcover
$$$
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A New Look at Geometry
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Covers a wide range of topics in geometric transformations, including the geometry of triangles.
A New Look at Geometry (Dover Books on Mathematics)
Kindle Edition
$$
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Handbook of Mathematics
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Covers the basics of trigonometry, including the trigonometric functions, identities, and equations. It also includes a section on the geometry of triangles.
Handbook of Mathematics
Paperback
$$$$
Handbook of Mathematics
Kindle Edition
$$$
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Calculus and Analytic Geometry
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Covers a wide range of topics in analytic geometry and calculus, including the geometry of triangles.
By George Brinton Thomas - Calculus and Analytic...
Hardcover
$$$$
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Precalculus
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Covers a wide range of topics in precalculus, including trigonometry, analytic geometry, and complex numbers. It includes a section on the geometry of triangles.
Precalculus
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Precalculus
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