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

Dividing a 3-digit number by a 1-digit number (1)
Torus
Interactive Unit Circle - Exact Trig Values
Set Operations (2 Sets)
functionartculture

Discover Resources

Interpretations of Division
Transformations
QUESTION
Calculo 1 Lic en mecanica industrial Gabriel Catuy
Pythagoras Theorem

Discover Topics

Fractions
Similarity Transformation or Similarity
Differential Calculus
Confidence Interval
Solids or 3D Shapes