Mathventure for 3rd Grade: The Perimeter of a Polygone

Mathventure for 3rd Grade: The Perimeter of a Polygone
Determining the length of a line is often useful. Determining the length of a fence needed to enclose a pool is also useful. It's time to discover the concept of perimeter!

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關鍵字詞: STEM | 科學 | 科普 | 機械人

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