Acute angle:It is less than a 90 degree angle.
Obtuse angle:It is more than a 90 degree angle but less than 180 degree angle.
Strait angle:It is 180 degree angle.
Right angle:It has a 90 degree angle but it is in a corner.
Quadrolateral shape:It has four sides.
Square:A plane figure with four equal strait sides.
Rectangle: A plane figure with four strait sides.
Rhombus: A parallelogram opesite equal acute angles.
Trapezoid:A quadrolateral shape with only one pare of parallel sides.
Parallelogram:A shape with four sides and opposite sides that are parallel.
These are games that teach you about geometry