打 打 dǎ Strokes5 Radical 扌 — hand Made of 扌 hand 丁 male adult How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation
开 开 kāi Strokes4 Radical 廾 — two hands Made of 一 one 廾 two hands How it's builtIdeograph — the meaning is built from its parts Play the animation