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平行四邊形面積
Author:
曾己泉
平行四邊形的面積＝底 x 高
Discover Resources
Truncated great dodecahedron
CT4a
therom8
Common Multiples
Flýtihandbækur um GeoGebru á íslensku
New Resources
heartrate2
MeganYee_Classwork10/17
Investigating Rotations
Right-angled triangle
Bagels or Donuts - A Balanced Assessment Task
