丸 means round, circle and is a JLPT N2 kanji. It has 3 strokes and uses the dot radical (丶).
Stroke order · 3 strokes
On'yomi (音読み)
ガン
Kun'yomi (訓読み)
まる
Radical
丶 · dot
Strokes
3
How to remember 丸
A person curled up into a ball shape — round. In Japan, a correct answer isn't marked with a check but with a 丸 (a round mark); a wrong one gets a cross.