Internal angles in a quadrilateral

Maths

Shown below is a rhombus. Calculate each of the missing angles

Decide if the following statement is always, sometimes or never true: The diagonals of a quadrilateral intersect.

Decide if the following statement is always, sometimes or never true: The diagonals of a rhombus are perpendicular.

Decide if the following statement is always, sometimes or never true: The diagonals of a trapezium are perpendicular.

Decide if the following statement is always, sometimes or never true: The diagonals of a quadrilateral are the same length

Which line (A, B or C) is a diagonal of this shape?

The diagonals of a three quadrilaterals are shown, draw and name the shapes.