A circle has an infinite number of angles of rotational symmetry.
Parrallelogram (it has rotational symmetry but no lines of symmetry)
Only the pair of angles opposite the line of symmetry are equal. The other two angles that are bisected by the line of symmetry are not equal. if these angles were equal then the shape would be a rhombus.
nothing.
Symmetry. Perfect symmetry. Equality of angles, edges and vortices.
Diamonds belong to the cubic crystal system. This means that diamonds have a symmetrical cubic structure with three axes of equal length that intersect at right angles. This gives diamonds their characteristic symmetry and hardness.
A circle has an infinite number of angles of rotational symmetry.
No, raw uncut diamonds do not come in the shape of a round crystal ball. Raw uncut diamonds typically have a rough, irregular shape with many facets and angles. The round shape of a crystal ball is usually achieved through cutting and polishing.
infinite angles of rotational symmetry... (: ~kitty <3 = =
why one of unit cell angles of hexagonal crystal is 120 digree
If your asking what shape has three lines of symmetry, your answer would be an equilateral triangle. You can tell how many lines of symmetry a shape that has all angles of the same measure has by looking at it's angles. Ex., pentagon has five angles--five lines of symmetry; octagon has eight angles, eight lines of symmetry; etc.
Parrallelogram (it has rotational symmetry but no lines of symmetry)
2 axes from angles to angles
Only the pair of angles opposite the line of symmetry are equal. The other two angles that are bisected by the line of symmetry are not equal. if these angles were equal then the shape would be a rhombus.
A rectangle. Obviously the right angles are in the four corners of the rectangle. The lines of symmetry occur across the horizontal and vertical. There are no lines of symmetry on the diagonal.
you can describe the hexagon by: how many acute angles, obtuse angles, and reflex angles cancave polygon or convex polygon how many sides does it have irregular no line of symmetry or line of symmetry
Crystal form refers to the natural geometric shape of a mineral crystal, which is determined by its atomic structure. Cleavage is the tendency of a mineral to break along distinct planes of weakness due to its internal atomic arrangement. Cleavage can be described in terms of the number of planes, angles between them, and the quality of the cleavage surface.