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SubjectsMathematicsAlgebra & GeometryChapter 6 — Geometry6.4 Quadrilaterals & Polygons

Topic 6.4 · Mathematics · Geometry

Quadrilaterals & Polygons

Quadrilaterals & Polygons is studied as part of "Geometry" (Algebra & Geometry) in Mathematics. Lines, angles, triangles, circles and polygons — the geometry of plane figures tested in exams.

In the examination context, quadrilaterals & polygons carries conceptual questions that test both factual recall and analytical understanding. Revise this topic in sequence with the rest of the chapter so that chronological and thematic links are clear.

Important Facts

Pythagoras theorem
H² = P² + B²
Angle sum of triangle
180°
Exterior angle
Sum of two interior opposite angles
Angle in semicircle
90°

Key Points

  • Angle sum of triangle — 180°
  • Exterior angle — Sum of two interior opposite angles
  • Angle in semicircle — 90°
  • Pythagoras theorem — H² = P² + B²

Important Names

PythagorasEuclid
Exam-Oriented Notes
  • »In a triangle, the sum of any two sides is greater than the third. Angles in the same segment are equal.

Related topics

6.1 Lines & Angles6.2 Triangles6.3 Circles
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