Chinese
:
希羅公式
English
:
heron's formula
Cantonese pronunciation
:
hei1 lɔ4 guŋ1 sik7
Putonghua pronunciation
:
xī luó gōng shì
English pronunciation
:
ˈher.ənz ˈfɔː.mjə.lə
Subjects
:
Mathematics 
Grades
:
Secondary 1 Secondary 2 Secondary 3 Secondary 4 Secondary 5 Secondary 6 
Alphabet
: