Search results
Create the page "12 points sphere.png" on this wiki! See also the page found with your search.
- ...ngle ACB_1 = \angle DCB + \angle BCA + \angle ACD = 180^\circ,</cmath> so points <math>A_1, C,</math> and <math>B_1</math> are collinear. Similarly, triples of points <math>A_1, B, C_1</math> and <math>B_1, A, C_1</math> are collinear.19 KB (3,355 words) - 07:00, 22 August 2024