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圓周 (圖形D)
Author:
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
New Resources
圓與切線
百變糖果棒
中考东莞2018-10改编
鉛筆畫圓
S2-03-P.14-1
Discover Resources
n星角
Making Graph paper
加法
Magnitude of cosine
area and parameter of triangle
Discover Topics
Random Experiments
Pyramid
Sequences and Series
Surface
Geometric Transformations
