2:26:17
1.1 Extended Sine Rule, 1.2 Ceva's Theorem, Groups defined
Dr Michael Sun's School for Maths
27:56
Geometry revisited exercises 1.1 (2,3,4) and 1.2 (2)
1:06:13
Geometry revisited ex1.2 (3,1). thms1.3 -1.4, associativity, sets and functions defined, subgroups
1:28:22
1.5 Steiner-Lehmus Theorem, 1.6 Orthic triangles and exercises from 1.3, 1.4 (Geometry Revisited)
38:16
Geometry Revisited 1.8 Nine point circle
1:42:42
Geometry Revisited Exercise 1.8.1 and 1.8.2, Cayley's Theorem (groups)
2:03:51
Cayley's Theorem and group theory basics after tournament of towns 2019 spring JO p3
1:48:46
1.9,1.7 Pedal and Medial triangles and Euler line, 1.8 Nine point circle (Geometry Revisited c1end)
9:39
Self study Geometry for High School students (Geometry Revisited Book review)
0:58
Geometry Revisted by Coxeter and Greitzer #mathsolympiad #book