Sum of Interior Angles of a Polygon

Author:現代中學數學 Modern Secondary Mathematics

Topic:Angles, Plane Figures or Shapes, Polygons

Investigate the sum of interior angles of a polygon by observing the number of triangles the polygon can be divided into. (for use with P.4.10 and P.4.11 of Book 1B)

New Resources

bewijs stelling van Pythagoras
Row and Column Views of Systems of Linear Equations
Trammel of Archimedes Art
Celsius ↔ Fahrenheit Converter
Rule of Sarrus - Determinant of a 3×3 Matrix

Discover Resources

Luas Segitiga Lancip
Alex Rigid motions challenge
Prooiect
Sine Function

Discover Topics

Hyperbola
Exponent
Parallelogram
Trigonometric Functions
Exponential Functions