倒 means to fall over, to collapse and is a JLPT N3 kanji. It has 10 strokes and uses the person (side) radical (亻).
Stroke order · 10 strokes
On'yomi (音読み)
トウ
Kun'yomi (訓読み)
たお(れる)、、さかさま
Radical
亻 · person (side)
Strokes
10
How to remember 倒
A person (亻) arrives (到) and collapses with a thud — falling over from exhaustion. 面倒 (trouble/hassle) literally means 'face turned over' — the peak of annoyance.