Vocabulary
凹角
おうかく
vocabulary vocab word
concave angle
(a) re-entrant
凹角 凹角 おうかく concave angle, (a) re-entrant
Meaning
concave angle and (a) re-entrant
Practice Writing
Character: 1/2
Stroke: 1/0
おうかく
vocabulary vocab word
concave angle
(a) re-entrant