The diagonal of a quadrilateral divides the quadrilateral into two .

Check whether the given angles are the interior angles of a quadrilateral.

$60°, 70°, 80°$ and $145°$

Check whether the given angles are the interior angles of a quadrilateral.

$75°, 75°, 75°$ and $135°$

Check whether the given angles are the interior angles of a quadrilateral.

$102°, 150°, 40°$ and $68°$

Check whether the given angles are the interior angles of a quadrilateral.

$90°, 90°, 90°$ and $90°$

Two angles of a quadrilateral are supplementary. If one of the remaining angles is $65°$, determine the fourth angle.

Two angles of a quadrilateral are of $70°$ each, and the remaining two angles are equal. Determine the measure of the equal angles.