Ritual, Equation, Style
The kanji and the word are exactly the same. That means they share meanings as well.
The reading is the same as what you learned with the kanji. In fact, this kanji's on'yomi AND kun'yomi are しき, so you can never go wrong.
Where the heck is the ceremony being held?
The opening ceremony is scheduled for 9 a.m.
The ritual was boring, so I killed time by solving a bunch of equations.