Key Stage 3 (Junior Secondary) > 3.2 Measures, Shape & Space 度量、圖形與空間 > Simple Introduction to Deductive Geometry 演繹幾何簡介 >
Key Stage 3 (Junior Secondary) > 3.2 Measures, Shape & Space 度量、圖形與空間 > Simple Introduction to Deductive Geometry 演繹幾何簡介 >
Inscribing a circle in a triangle |