Yes
A square
Parallelogram
It is a rhombus or a parallelogram
A.A 10° angle is congruent to a 10° angle.B.Congruent angles always add up to 90°.C.A congruent angle is always 90°.
The quadrilateral that must have diagonals that are congruent and perpendicular is the square. This is because its diagonals form a right angle at its center.
Yes
A square
Any quadrilateral other than a square or kite could have diagonals meeting at 30 degrees.
Why a rhombus of course.
No, but a quadrilateral can.
Parallelogram
-- Rhombus -- Regular parallelogram
rectangle
It is a rhombus or a parallelogram
Rhombus and square are the only quadrilaterals whose diagonals bisect the angles of the quadrilateral. In both these quadrilaterals, the diagonals intersect at right angles, dividing each angle into two equal parts.
A.A 10° angle is congruent to a 10° angle.B.Congruent angles always add up to 90°.C.A congruent angle is always 90°.