Common name: American cockroach Scientific name: Periplaneta americana Linnaeus Order: Blattaria. Description: This is one of the largest common cockroaches in Texas, reaching 1-1/2 to 2 inches.They are reddish-brown in color.ommon name: American cockroach Scientific name: Periplaneta americana Linnaeus Order: Blattaria. Description: This is one of the largest common cockroaches in Texas, reaching 1-1/2 to 2 inches.
If we have a parallelogram where all sides are congruent then we have what is called a rhombus. The properties of parallelograms can be applied on rhombi. If we have a quadrilateral where one pair and only one pair of sides are parallel then we have what is called a trapezoid.
A parallelogram is a quadrilateral with 2 pairs of parallel sides. Enjoy a range of free pictures featuring polygons and polyhedrons of all shapes and sizes, including simple 2D shapes, 3D images, stars and curves before heading over to our geometry facts section to learn all about them.