The sum of the four interior angles of a quadrilateral is

A quadrilateral in which one pair of opposite sides are parallel is a

In the figure $\mathrm{\angle }D\backslash angle\; D$ =

ABCD is a trapezium in which $AB\mathrm{\mid }\mathrm{\mid }CD\mathrm{.}AB\backslash ,||CD.$ If $\mathrm{\angle }A={45}^{\circ }\backslash angle\; A=45^\backslash circ$ then $\mathrm{\angle }D\backslash angle\; D$ =

ABCD is a parallelogram. If $\mathrm{\angle }D={80}^{\circ }\backslash angle\; D=80^\backslash circ$ then $\mathrm{\angle }A\backslash angle\; A$, $\mathrm{\angle }B\backslash angle\; B$, $\mathrm{\angle }C\backslash angle\; C$ are

ABCD is a parallelogram and BC is extended. If $\mathrm{\angle }A={40}^{\circ }\backslash angle\; A=40^\backslash circ$ then $\mathrm{\angle }DCE\backslash angle\; DCE$ =

The bisectors of any two interior angles of a rhombus meet at

Diagonals are equal in a

Angle between the diagonals of a rhombus is

In a parallelogram ABCD, $\mathrm{\angle }BAD={65}^{\circ }\backslash angle\; BAD=65^\; \backslash circ$ then $\mathrm{\angle }ADC\backslash angle\; ADC$ =