DIMM
A trapezoid.
Square and rhombus.
Its opposite sides are congruent. Its adjacent sides may be but it's not necessary. If they are, then it's a special kind of parallelogram, called a 'rhombus'.
It is a rectangle or a square.
strike slip fault
strike-slip faults.
Yes, a parallelogram is a quadrilateral in which opposite sides are parallel, so a square is a special case parallelogram.
-- If only two of its sides are parallel to each other, then it's a trapezium (or trapezoid). -- If each of its 4 sides is parallel to the side opposite it, then it's a parallelogram. If more things about it are also true, then it may be a special kind of parallelogram, called a rhombus, a rectangle, or a square.
A rectangle is a special kind of quadrilateral that has four right angles and opposite sides that are equal and parallel.
A rectangle is a special kind of quadrilateral that has four right angles and opposite sides that are equal and parallel.
A parallelogram is a 4-sided figure whose opposite sides are parallel. and opposite angles are the same. The opposite sides of a rhombus are parallel, therefore it's a parallelogram. Its sides also happen to be all the same length, which isn't required in a parallelogram, and that's why it's a special kind of parallelogram and has a special name. However, a parallelogram is NOT a rhombus!
The diagonals of a rhombus are perpendicular. A rhombus is a special kind of parallelogram. It has the characteristics of a parallelogram (both pairs of opposite sides parallel, opposite sides are congruent, opposite angles are congruent, diagonals bisect each other.) It also has special characteristics. It has four congruent sides. So it looks like a lopsided or squished square. Its diagonals are perpendicular. Another property: each diagonal bisects two angles of the rhombus.