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20:04duration 20 minutes 4 seconds
Areas of polygons and circles (English subtitles…
Areas of polygons and circles (English subtitles available)
Some real-life situations of a furniture shop…
19:43duration 19 minutes 43 seconds
Areas and Volumes (English subtitles available)
1. Introduce Dissection Method and Fill Up Method…
19:41duration 19 minutes 41 seconds
面積和體積
1. 介紹「分割法」和「補足法」這兩種計算多邊形面積的方法 2. 推導及應用圓面積公式 3.…