To construct a quadrilateral uniquely, five measurements are required. A quadrilateral can be constructed uniquely if the lengths of its four sides and a diagonal are given or if the lengths of its three sides and two diagonals are given.
Just given two angles we cannot construct a unique quadrilateral. There may be an infinite number of quadrilaterals having atleast two right angles
The figure is NOT unique. Imagine the following quadrilaterals: Rectangle Square We know that: Both quadrilaterals have at least two right angles. However, they are not unique because they depend on the lengths of their sides. Answer: The figure described is not unique.
