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Name the best classification for a parallelogram with 4 right angles and diagonals that bisect each other?
A square. All squares are parallelograms, but not all parallelograms are squares.
Do parallelograms have parallel sides?
Yes. A Parallelogram is a quadrilateral that has two pairs of parallel sides which are opposite each other and of equal length, though the pairs may be of different length to each other. If the angles are all 90° then the parallelogram is also a rectangle. If the angles are all 90° AND all sides are equal then the parallelogram is also a square. All squares are rectangles, but not all rectangles are squares; Similarly all squares are rhombuses but not all rhombuses are squares And all rhombuses, and thus squares, are parallelograms, but not all parallelograms are rhombuses (nor squares).
A square has diagonals that are?
the squares diagonal are all congruent to each other, and the diagonals make 4 isoceles triangles.
Are all 45 45 90 triangles are similar to each other?
Yes or they could be congruent to each other.
Which quadrilateral has two pairs of the sides length and all angles equal?
Rectangle.If all of the angles are equal to each other (360/4), each one is 90 degrees, or a right angle. If two pairs are equal to each other and each angle is 90 degrees, the shape is a rectangle. It could also be a square, a type of rectangle, if all of the sides are the same length. NOTE: All squares are rectangles, but not all rectangles are squares.
