Rectangle is a special parallelogram. The picture is as follows:

Attribute 1: All four inner corners of the rectangle are equal.

Property 2: The two diagonals of a rectangle are equal.

Property 3: A rectangle is an axisymmetric figure, and the symmetry axis is a set of straight lines connecting the midpoints of opposite sides.

In addition, from the nature of the rectangle, we can draw a conclusion:

(1) The median line on the hypotenuse of a right triangle is equal to half of the hypotenuse;

(2) The diagonal of the rectangle divides the rectangle into four isosceles triangles.

Extended data

Common methods for judging rectangles are as follows:

(1) A parallelogram with right angles is a rectangle;

(2) Parallelograms with equal diagonals are rectangles.

(3) A quadrilateral with three right angles is a rectangle.

(4) Theorem: It has been proved that in the same plane, any two angles are right angles, and any group of quadrangles with equal opposite sides are rectangles.

(5) Quadrilaterals with equal diagonals and bisecting each other are rectangles.