Author:Sean Foster

New Resources

• Forming Similar Triangles
• 畫三角形
• MC #2
• Ringed Polyhedra
• Untitled

Discover Resources

• Rotation around a point
• Inverse Trig 1.1
• Money Market
• Equal Angles Subtended from Equal Arcs
• Quiz on Arithmetic Operations of Fractions 分數的四則運算：測驗

Discover Topics

• Square
• Polygons
• Dilation
• Straight Lines
• Cosine