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 quadrilateral is a parallelogram if and only if its diagonals bisect each other (this should be in any geometry book). 3 people found this useful. Edit. Share to: 1  College Admission Interview Dos and Don'ts Some colleges offer applicants the opportunity to interview on campus or close to home.es. Other things about parallelograms: -opposite sides are equal in length. -opposite angles are equal in length. -diagonals bisect each other.