greek letter for an angle: crossword clues

Matching Answer
Confidence
THETA
60%
ELL
60%
ETA
60%
RHO
60%
TAU
60%
PSI
60%
PHI
60%
OMEGA
60%
IOTA
60%
CHI
60%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)