각角 edge; corner 삼각三角 triangle; being triangular 시각視角 viewpoint; perspective 촉각觸角 antenna; feelers 총각總角 bachelor; single man 호각號角 whistle 각도角度 angle 각도기角度器 protractor 각막角膜 cornea 각막염角膜炎 keratitis 각목角木 lumber; squre wood 각질角質 dead skin cells; keratin; horny substance 각축角逐 competition; rivalry 각축장角逐場 arena of competition 각축전角逐戰 heated competition; neck-and-neck race 내각內角 internal angle 노총각老總角 old bachelor 다각도多角度 multiangle 다각적多角的 many-sided; multilateral; diversified 다각형多角形 polygon 다각화多角化 diversification 대각선對角線 diagonal; diagonal line 두각頭角 excellence; distinction 둔각鈍角 obtuse angle 사각四角 quadrangle; being quadrangular 사각死角 blind spot 사각지대死角地帶 blind spot 사각형四角形 quadrangle; square 삼각관계三角關係 triangular relationship 삼각형三角形 triangle 시각차視角差 difference in viewpoints 예각銳角 acute angle 오각형五角形 pentagon 외각外角 external angle 육각형六角形 hexagon 일각一角 some; part; piece 정다각형正多角形 regular polygon 정사각형正四角形 square 정삼각형正三角形 regular triangle 정오각형正五角形 regular pentagon 정육각형正六角形 regular hexagon 직각直角 right angle 직사각형直四角形 rectangle 직삼각형直三角形 right triangle 팔각정八角亭 octagonal pavilion