Radical 冫
6 strokes
ice 冫 (360a) + separate 夬 (402a) = decide 决
This is a DIY pronunciation. In this book the pronunciation “jue” only applies to this character and the following one.
[决心 (161) juéxīn be determined, make up one’s mind]

(You’re out skating on a frozen lake) the ice starts to separate, and you have one foot on each side of the gap so have to decide very quickly which way you’re going to jump! / [DIY pronunciation]