a square
a perometer parallel hicktogon
It's called a rectangle, the sides must be same length in addition to it having all 90 angles for it to be a square.
Acute angles.
squares
yes because a square is, by definition, a shape having 4 ninety degree angles, and four congruent sides
No, but it can have 1, 2 or 4 ninety degree angles.
Yes, to be a square, it must have all 90º angles.
Lines that intersect right angles (ninety-degree angles) are described as perpendicular.
Square rectangle rhombus parallelogram
A rectangle has four ninety degree angles, where as a trapezoid does not.
Right angles are ninety degree angles. That is equal to one quarter of a complete rotation.
It is a triangle with 90, 60, and 30 degree angles.