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Circles - Table of Content
(Page 19)
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Proposed Problem
120. Area of triangle,
incenter, excircles,
tangent.
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Proposed Problem
119. Area of triangle,
incenter, excircle,
tangent.
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Proposed Problem
118. Area of triangle,
incenter, excenter,
tangent.
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Proposed Problem
117. Area of triangle,
incenter, excircles,
tangent.
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Proposed Problem
116. Area of triangle, excircles,
tangent.
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Proposed Problem
115. Area of triangle, excircles,
tangent.
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Proposed Problem
114. Area of triangle, incircle,
excircle.
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Proposed Problem
113. Area of triangle, incircle,
excircle.
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Stonehenge builders had geometry skills to rival Pythagoras
Five years of detailed research, carried out by the Oxford University landscape archaeologist Anthony Johnson, claims that Stonehenge was designed and built using advanced geometry.
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Proposed Problem
112. Area of square and triangle.
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Proposed Problem
111. Orthogonal Circles.
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Proposed Problem
110. Area of Contact Triangle.
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Bandurria is the oldest Peruvian archaeological site, says expert
Bandurria may rival Caral as oldest citadel in Americas.
Satellite View: circular ceremonial center |
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Eight-Point Circle Theorem
Step-by-Step construction, Manipulation, and animation. |
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Proposed Problem
100. Circle Area, Archimedes' Book of Lemmas.
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Proposed Problem 99: Circle Area, General Extension to Pythagoras' Theorem.
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Incircles or inscribed circles.
Proposed Problem
96. Similar Triangles, Incenters, Parallelogram. |
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Incircles or inscribed circles.
Proposed Problem
95. Similar Triangles, Inradii,
Parallel. |
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Circumcircles or circumscribed circle
Proposed Problem
94. Similar Triangles, Circumcircles,
Circumradii. |
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Circumcircles or circumscribed circle
Proposed Problem
93. Similar Triangles, Circumcircles, Parallelogram. |
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