by:Cole Derek

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.

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