Geometry Notes

(Angles on a Point)

---

Parallel Lines

1. Corresponding Angles ()
2. Alternate Angles ()
3. Interior Angles ()

---

Triangle

1. Angles Sum of Triangle ()
   
2. Base Angles of Isosceles Triangle ()
   
3. Exterior Angle of Triangle ()
   
4. Sum of Interior Angles of Polygon ()

---

Circle

1. Angles on the Same Segment ()
   
2. Angles on Opposite Segments ()
   
3. Angle at Centre is Twice Angle on Circumference ()
   
4. Angles in a Semicircle ()
   
5. Tangent Perpendicular to Radius ()
   
6. Equal Tangents ()
   
7. Equal Chords ()
   
8. Tangent-Chord Theorem ()
   

---

Congruent Triangles ()

1. SSS (Side-Side-Side)
2. SAS (Side-Angle-Side)
3. ASA (Angle-Side-Angle)

---

Similar Triangles

1. AA (Angle-Angle)