Sum of Interior Angles of a Polygon

Autore:現代中學數學 Modern Secondary Mathematics

Argomento:Angoli, Figure o forme piane, Poligoni

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)

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What Do You See? (2)
Absolute Value Functions f(x)=a |x - h| + k
Parabolas, Lines and Nomograms
挂谷问题——三尖瓣形
Quadrant Illustrator 2

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Distance and Time Blank Graph
Where the gradient of a function is the same as a line
Imani Roberts
triangles
การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ

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Triangoli simili
Costruzioni
Triangoli equilateri
Sottrazione
Rette tangenti