ERIC Number: EJ509031
Record Type: CIJE
Publication Date: 1994
Reference Count: 0
Demonstrating the Rule for the Sum of Angles Inside a Triangle.
Eckroth, Charles A.
Physics Teacher, v32 n8 p506-07 Nov 1994
Provides a method of demonstrating triangles on a curved surface to aid the student in seeing that the sum of the angles are either more or less than 180 degrees depending upon which side of the sphere the triangle is placed. (MVL)
Publication Type: Guides - Classroom - Teacher; Journal Articles
Education Level: N/A
Authoring Institution: N/A