The diagonals of a rhombus are perpendicular? always, sometimes, or never

The correct option is 1. The diagonals of a rhombus are always perpendicular.

Step-by-step explanation:

A quadrilateral is rhombus if the opposite sides are parallel, opposite acute and obtuse angles are equal, and four equal sides.

The line segment jointing the opposite vertices is known as diagonal.

According to the property of rhombus, the diagonals of a rhombus are perpendicular bisector of each other.

The diagonals of a rhombus are always perpendicular. Therefore the correct option is 1.

step-by-step explanation:

the true ones are a b and d

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.