Question

Which of the following quadrilaterals has two pairs of adjacent sides equal and diagonals intersecting at right angles?

Answer 1

Answer:

Triad, in chemistry, any of several sets of three chemically similar elements, the atomic weight of one of which is approximately equal to the mean of the atomic weights of the other two.

Answer 2

$\fbox\red{Rhombus }$

A rhombus is a a parallelogram and a quadrilateral whose opposite sides are parallel and opposite angles are equal.

1. Area of Rhombus, A = (d1 x d2)/2
2. The perimeter of Rhombus, P = 4a units
3. The opposite angles of a rhombus are equal to each other.
4. In a rhombus, diagonals bisecting each other at right angles.
5. Diagonals bisect the angles of a rhombus.