ERIC Number: EJ875479
Record Type: Journal
Publication Date: 2005
Abstractor: As Provided
Reference Count: 0
Some Unusual Expressions for the Inradius of a Triangle
Osler, Thomas J.; Chandrupatla, Tirupathi R.
AMATYC Review, v26 n2 p12-17 Spr 2005
Several formulae for the inradius of various types of triangles are derived. Properties of the inradius and trigonometric functions of the angles of Pythagorean and Heronian triangles are also presented. The entire presentation is elementary and suitable for classes in geometry, precalculus mathematics and number theory.
Descriptors: Geometric Concepts, Trigonometry, Calculus, Mathematics Instruction, College Mathematics, Community Colleges, Mathematical Concepts, Number Concepts
American Mathematical Association of Two-Year Colleges. 5983 Macon Cove, Memphis, TN 38134. Tel: 901-333-4643; Fax: 901-333-4651; e-mail: firstname.lastname@example.org; Web site: http://www.amatyc.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Postsecondary Education; Two Year Colleges
Authoring Institution: N/A