四角六片四角孔ねじれ正多面体の英語

a tetrahedron with four equilateral triangular faces

a three-sided regular polygon

a polyhedron whose faces are trapeziums

an octahedron with eight equilateral triangles as faces

a right-angled isosceles triangle

the four-dimensional analogue of a cube

a dodecahedron with twelve regular pentagons as faces

a square

a prism whose bases are parallelograms

a prism whose bases are quadrangles

an icosahedron with twenty equilateral triangles as faces

a polyhedron any plane section of which is a convex polygon

an equilateral triangle

a parallelepiped bounded by six similar faces (either rhombuses or parallelograms)

a hexagon with six sides of equal length

a triangle with one right angle

in geometry, the oblique side of a right-angled triangle

a plane rectangle with four equal sides and four right angles

a circumscribed polygon each of whose sides touches the circle

a cravat with wide square ends

a triangle whose interior angles are all acute

any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent

the interior angles of several sided geometric shape

the side of a right angled triangle opposite the right angle

a side of a polygon

a hexahedron with six equal squares as faces

a regular tetragon

the center of the circle circumscribing a polygon

a hexahedron whose opposite faces are parallel to each other and whose consecutive faces make a right angle with each other

a solid figure bounded by plane polygons or faces