right angle

angle, arcsecond, retroreflector, magnifications, celestial sphere, arcuate, elliptic, angular, ellipse, fovea, azimuthal, hypervelocity, unpolarized, obliquity, epsilon aurigae, eyepiece, collimated, canted, isosceles triangle, mirrorlike, convex lens, temperature gradient, stereographic, prograde, underexpose, gradational, perpendicularly, norite, orthogonally, cumulus cloud, erosional, celestial equator, compressional, horizontal, collinear, magnetic dipole, airglow, isotropic, amphibolite, sunward, crosshatching, equilateral triangle, foliation, vernier, diffracted, ellipsoid, mantling, foreshortening, curvature, syrtis major, magnetopause, contrasty, telescopically, waviness, anticlines, photosphere, jovian, obscuration, circular polarization, anticlinal, moonlet, dipole moment, interocular, coronal, upslope, dihedral, extensional, asteroidal, unobstructed, parabola, pronated, directivity, outcrop, silicic, inclinometer, galactic equator, hemispherical, posteriorly, rearwards, ecliptic, downslope, transversely, synchronous orbit, zodiacal light, diffraction grating, meridional, angular velocity, mylonite, baseplate, foliated, nebulosity, inhomogeneous, gnomon, exosphere, dipolar, aperture, superposed, eclipsing binary, gravitational interaction, farside, fresnel, stratiform

acute angle, obtuse angle

angle