Convexo.JPG
Jach
en
Convexo, Angles (geometry)
commons
en
Convexo, Definition of convex angle
commons
ja
アングル
commons_translated
ja
凸角の定義
commons_translated
right-angled angular unit obtuse angle acute angle reflex angle vertical angle oblique-angled oblique angle plane angle complementary angles right angle angle angulate convex convexly