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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ178338
Record Type: CIJE
Publication Date: 1978
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
SSA and the Law of Cosines
Cohen, Martin P.; And Others
Mathematics Teacher, 71, 1, 58-9, Jan 78
A combination of trigonometry and algebra is used to focus on the concept of congruent triangles. (JT)
Descriptors: Congruence, Geometric Concepts, Mathematics Instruction, Secondary Education, Secondary School Mathematics, Triangles (Geometry), Trigonometry
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Congruent Figures; Proof (Mathematics)