Stroke order is not decoration — it determines how the character looks handwritten and how dictionaries index it.
The radical is the part a paper dictionary files a kanji under, and it usually hints at meaning. 辶 is filed under 辵 (walk) — radical number 162 of the 214 in the Kangxi system.
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Kanji Duel pits 辶 and 3,000 others head to head. One life. How long can you last?
辶 is read kun'yomi (native Japanese) しんにょう.
辶 is written with 3 strokes. The animated diagram on this page shows the correct order.
The radical of 辶 is 辵 (walk), radical number 162 of the 214 Kangxi radicals. The radical is the component a dictionary files the character under, and it usually points at the character's meaning.
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