Question

is parallelogram cdef a rhombus?

Explanation:

Step1: Recall the property of a rhombus

A parallelogram is a rhombus if and only if its diagonals are perpendicular.

Step2: Check the diagonals of parallelogram CDEF

In parallelogram \(CDEF\), the diagonals \(CF\) and \(DE\) intersect at point \(B\) and \(\angle DBC = 90^{\circ}\) (given by the right - angle symbol), which means the diagonals are perpendicular.

Answer:

yes