Introduction
Cycle 1
Cycle 2
Cycle 3
Cycle 4
Cycle 5
Cycle 6
Cycle 7
Cycle 8
Cycle 9
Cycle 10
Cycle 11
Cycle 12
Book II+
Problem J
Problem K
Explanation of II.9
Explanation of II.11
II.14 – Construction Test
Problem L
Problem M
Problem N
Problem O
Problem P
Problem Q
Problem R
Problem V
Please note that, in older versions of the guidebook, the problem contains an error in the way it is written. The given should include angle CDE as a right angle in addition to angle AFB being a right angle.
Problem W
Please note that, in older versions of the guidebook, the problem contains an error in the way it is written. Rather than saying “Prove that CD is the mean proportional to AD, BC.” the problem should state “Prove that BD is the mean proportional to AD, BC.”