The measure of one angle of a parallelogram is $100^{\circ}$. The measure of its opposite angle is___________ $\left(50^{\circ}, 100^{\circ}, 130^{\circ}\right)$
Sum of three angles of a quadrilateral is $300$ deg then the measure of the fourth angle is............ $\left(120^{\circ}, 60^{\circ}, 90^{\circ}\right)$
If the measures of all four angles of a quadrilateral are equal, then measure of each angle is.......... $\left(180^{\circ}, 90^{\circ}, 360^{\circ}\right)$