8/11/2023 0 Comments Irregular quadrilateral![]() ![]() The theorem related to the opposite angles of a cyclic quadrilateral says that," The opposite angles in a cyclic quadrilateral are supplementary, i.e., the sum of the opposite angles is equal to 180°". The opposite angles are those angles that are diagonally opposite to each other. When a quadrilateral is inscribed in a circle, it is known as a cyclic quadrilateral. The opposite angles of a cyclic quadrilateral are always supplementary. What are the Opposite Angles of a Cyclic Quadrilateral? These angles share a common arm and lie next to each other. The adjacent angles of a quadrilateral are also known as consecutive angles. What are the Adjacent Angles of a Quadrilateral? The 4th unknown angle can be calculated by subtracting the sum of the given interior angles from 360. This property is useful if 3 angles of a quadrilateral are known, and we need to find the 4th angle. What is the Sum of Interior Angles of Quadrilateral?Īccording to the angle sum property of quadrilaterals, the sum of the interior angles of a quadrilateral is 360°. In a quadrilateral, n = 4, so after substituting the value of n as 4, we get, Sum = (4 − 2) × 180° = 360° ![]()
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