right angle
noun[C]
uk/ˈraɪt ˌæŋ.ɡəl/us/ˈraɪt ˌæŋ.ɡəl/anangleof 90°:
直角Asquarehas fourrightangles.正方形有4个直角。
kyoshino/iStock/Getty Images Plus/GettyImages
Geometry: describing angles, lines & orientations
- acute
- angle of incidence
- angularity
- antinode
- asymptote
- asymptotic
- bisector
- circuitous
- equilateral
- indirect
- non-planar
- noncollinear
- obliquely
- obtuse
- orthogonal
- osculate
- projection
- prominent
- rectilinear
- sine