Animation 204

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Tim Brzezinski —

 
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活动
标签
area  area-parallelogram  area-problem  area-regular-quadrilateral  area-triangle  areas  ccss  common  common-core  common-vertex  core equal-areas geometry hexagon practice problem-set-problem proof proof-without-words regular regular-quadrilateral square 显示更多…
目标群组(年龄)
12 – 18
语言
English
 
 

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