supplementary angle

19 LETTERS · STARTS WITH S

supplementary angle is a valid 19-letter word worth 28 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1U1P3P3L1E1M3E1N1T1A1R1Y4A1N1G2L1E1

1 + 1 + 3 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 1 + 2 + 1 + 1 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does supplementary angle mean?