# Orbital hybridisation

1. ### asitiaf

21
In sp3 hybridisation, how a tetragon is formed? As per book, in ch4 (methane) there are four sigma bond of same length and strength.
But we are having three sp sigma bonds (between s of H and p of C) and one ss sigma bond( between s of H and s of C). Then how can sp and ss sigma bond be of same length and strength?

2. ### dextercioby

12,301
You don't understand the concept of hybridization. Reread your book.