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Outline
S2 Angles Related to Rectilinear Figures
Interior & Exterior Angles of Triangles 三角形內角和及外角
尋找等腰三角形 Isosceles Triangle Hunt
Quiz on Interior & Exterior Angles of Triangles 三角形內角和及外角：測驗
Sum of Interior Angles of Polygons 多邊形內角和
Sum of Exterior Angles of Polygons 多邊形外角和
Tessellation
Tessellation
Tessellations
Escherized Tessellation
Mosaic: Escher's Lizard
Escherized Pentagon Tessellation
S2 Angles Related to Rectilinear Figures
Author:
tkyggb
S2 Angles Related to Rectilinear Figures
Interior & Exterior Angles of Triangles 三角形內角和及外角
尋找等腰三角形 Isosceles Triangle Hunt
Quiz on Interior & Exterior Angles of Triangles 三角形內角和及外角：測驗
Sum of Interior Angles of Polygons 多邊形內角和
Sum of Exterior Angles of Polygons 多邊形外角和
Tessellation
Tessellation
Tessellations
Escherized Tessellation
Mosaic: Escher's Lizard
Escherized Pentagon Tessellation
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Interior & Exterior Angles of Triangles 三角形內角和及外角
New Resources
四邊形的特性
三位數除以一位數（二）
判斷球體
兩位數除以一位數（二）
画直线等分三角形的面积
Discover Resources
Apollonius Problem 6 CLP Inversion 12
選修數學
橢圓P176例11
geogebra和初中数学课程深度融合
数一数
Discover Topics
Exponent
General Quadrilateral
Congruence
Natural Numbers
Diagrams
