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

Hyperbolic Paraboloid
Rose Curve
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
အခြေခံ data အခေါ်အဝေါ်များ
Fourier Lissajous (Mechanical)

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Exploration #1
Rotations 2
US-9315
Dimensions and thicknesses
การบวกจำนวนเต็ม

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Equilateral Triangles
Square
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