Question

properties of square ,trapezium, parllergram
​

Answer 1

Answer:

1. The most important properties of a square are listed below:

• All four interior angles are equal to 90°
• All four sides of the square are congruent or equal to each other
• The opposite sides of the square are parallel to each other
• The diagonals of the square bisect each other at 90°
• The two diagonals of the square are equal to each other
• The square has 4 vertices and 4 sides
• The diagonal of the square divide it into two similar isosceles triangles
• The length of diagonals is greater than the sides of the square

2.Trapezium:

• Like other quadrilaterals, the sum of all the four angles of the trapezium is equal to 360°
• A trapezium has two parallel sides and two non-parallel sides
• The diagonals of regular trapezium bisect each other
• The length of the mid-segment is equal to half the sum of the parallel bases, in a trapezium
• Two pairs of adjacent angles of a trapezium formed between the parallel sides and one of the non-parallel side, add up to 180 degrees

3 . Parallelogram:

• The opposite sides are congruent.
• The opposite angles are congruent.
• The consecutive angles are supplementary.
• If anyone of the angles is a right angle, then all the other angles will be the right angle.
• The two diagonals bisect each other.
• Each diagonal bisects the parallelogram into two congruent triangles