おう
凹
かく
角

noun

Mathematics.
  1. concave angle, (a) re-entrant.

Variations

Pronunciation Kanji Kana Is Common
おう
凹
かく
角
 凹角 おうかく

Contained Kanji Breakdown

concave, hollow, sunken
へこ.む　オウ　ぼこ (9th, N1)
open box enclosure, open box radical (no. 17)
カン (Kentei 1)
angle, corner, square
カク　かど　すみ (2nd, N2)
knife, wrapping enclosure(勹) variant
upside-down box radical (no. 13)
キョウ　ケイ (Kentei 1)
number one, line, rod radical (no. 2)
コン　シ　ジョ
two, two radical (no. 7)
ニ　ふた　ふだ (1st, N5)