Respuesta :
Answer:
12 inches.
Step-by-step explanation:
The quadrilateral will be rectangle and the diagonals will be parallel and equal to the sides of the rhombus.
If the midpoints of the rhombus with sides of 12 inches are joined to form a quadrilateral. The quadrilateral formed would be a square with diagonal of 12 inches.
What is a rhombus?
A rhombus is a quadrilateral (has four sides and four angles) in which the opposite sides are equal and parallel. All the sides of a rhombus are equal.
If the midpoints of the rhombus with sides of 12 inches are joined to form a quadrilateral. The quadrilateral formed would be a square with diagonal of 12 inches.
find out more on rhombus at: https://brainly.com/question/20627264