rectangle
Trapezoid
None normally unless it's an isosceles trapezoid then it will have 1 pair
A rhombus, or a square if there's a right angle. ( if there's one, there must be 4!)
It was named after a pentagon, it wasn't the 'Pentagon' that named the 'pentagon'.
is a regular pentagon if all its angles are congruent and is a general pentagon if they are not.
it has one obtuse angle and none of the sides are congrent
nothing
square
No.
isosceles
Equal base angles
a square
rectangle
No. Usually only opposite sides are congruent.
Trapezoid
-1