isosceles triangle, equilateral, rhombus, tetrahedron, pentagonal, conic, dodecahedron, rectangle, isosceles, semicircles, parallelograms, ellipse, hexagram, hexagon, rhombic, celestial sphere, gnomon, hypotenuse, octagons, polyhedron, ovoid, ellipsoid, triangles, arcuate, radians, hyperbolic geometry, asterism, rhomboid, rectangular, pentagons, cuboid, crosshatch, antiparallel, concavity, concentrically, octahedral, icosahedral, curved, plumb bob, dihedral, synclinal, elliptic, sigmoidal, oblong, corrugation, caudal fin, diagonals, hysteresis loop, angularly, triangular prism, lunette, armillary sphere, diffraction grating, symmetrical, parabola, superposed, toroid, ecliptic, unpolarized, chamfered, vertices, ovular, hexagonal, cruciform, gameboard, longways, rightmost, plastron, circlet, crescent, clove hitch, icosahedron, zodiacal light, weblike, arcsecond, ribbonlike, whorls, tessellated, topologically, inverted, ogee, horizontal, cylindrically, convex, opaline, flower petal, collinear, overhand knot, octahedron, dipolar, spherical, celestial equator, azimuthal, trapezoids, curvatures, sunward, spheroidal, ovate, orthogonally, stippled, perpendicularly, bevels

triangle, trigon, trilateral

equiangular triangle