A rectangle has 4 sides not the same length and 4 right angles.
A square has all 4 sides the same length and its angles measure the same as well. A rhombus has all 4 sides the same length as well and the angles measure the same as well too.
a polygon with all sides the same length and all angles the same measure is called?
isosceles triangle has two sides equal in length and two angles of the same measure;
An "isosceles" triangle has two sides the same length (and two angles the same).
The three sides are the same length but that length can be anything you like. The angles are 60 degrees each.
It is a rectangle. Just picture it. 4 right angles and 2 sides that are the same length.
a polygon with 4 right angles and 4 sides of the same length
I am not sure if you are saying that the opposite sides are the same length, if so you just have a parallelogram. If you are asking for all four sides to be the same length, you have a rhombus. If the angles are right angles, you have a square. ■