27
Similarity of Triangles
3 subtopics
28
Similarity criteria (AA, SAS, SSS): proving triangles similar
29
Basic Proportionality Theorem (Thales): applications
30
Area ratio theorem for similar triangles: problem practice
31
Pythagoras Theorem
1 subtopics
32
Pythagoras applications: real-life and geometry problems
33
Circles (Tangents)
3 subtopics
34
Tangent properties: radius ⟂ tangent, equal tangents from an external point
35
Number of tangents from a point: inside/on/outside circle
36
Standard theorem-based tangent questions (mixed)
37
Geometrical Constructions
3 subtopics
38
Construction: divide a line segment in a given ratio
39
Construction: tangents to a circle from an external point
40
Construction: similar triangles / scale factor based constructions