A square has 4 equal sides, 2 pairs of parallel sides and 4 right angles.
paralellogram
a tetrahedon
A TRAPEZIUM. Trapezia can be SYMMETRIC or ASSYMETRIC. That is Non-parallel sides can be of the same length or of different lengths/ intersext at different angles to the parallel lines.
A shape with parallel sides but no right angles is called a parallelogram
A square has 4 equal sides, 2 pairs of parallel sides and 4 right angles.
A trapezoid has 4 sides, 2 right angles and 1 pair of parallel lines
Opp. sides & angles are equal.opp. sides are parallel each angle is 90
TRAPEZOID
A triangle has no parallel sides but in the form of a right angle triangle it has perpendicular lines that meet at right angles which is 90 degrees.
trapezoid
four right angles four sides/edges two sets of parallel lines (ect, ect...)
A trapezoid has one pair of parallel side and can have two adjacent angles that are right.
A right trapezium.
Perpendicular lines = lines which are at right angles (90 degrees) to each otherDiamond = 2 pairs of parallel lines
square and rectangles are technicality squares
paralellogram