Question

defination of quadriteral​

Answer 1

Answer:

In geometry, a quadrilateral can be defined as a closed, two-dimensional shape which has four straight sides. The polygon has four vertices or corners.

They are of two types -

1. Convex Quadrilateral
2. Concave Quadrilateral

Answer 2

Answer:

Solution: Let ABCD be a quadrilateral such that the diagonals AC and BD bisect each other at right angles at O. Thus, the quadrilateral ABCD is a rhombus. Alternatively : ABCD can be proved first a parallelogram then proving one pair of adjacent sides equal will result in rhombus.

Step-by-step explanation:

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