https://www.khanacademy.org/math/class-9-geometry-od/x0a98afb01410c41a:mensuration/x0a98afb01410c41a:area-of-quadrilateral/v/area-of-general-quadrilateral 2026-05-07T07:40:40.09277071Z Area of general quadrilateral In this video, we explore different methods to calculate the area of a general quadrilateral using three distinct approaches. First, we learn how to find the area when one diagonal and the perpendiculars drawn from the opposite vertices are given. Next, we examine the special case where the diagonals bisect each other at right angles. Finally, we apply Heron’s formula to determine the area when all four sides and one diagonal are known. Each method is explained step by step to help you understand the concepts thoroughly and apply them with confidence in problem-solving. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Area of general quadrilateral In this video, we explore different methods to calculate the area of a general quadrilateral using three distinct approaches. First, we learn how to find the area when one diagonal and the perpendiculars drawn from the opposite vertices are given. Next, we examine the special case where the diagonals bisect each other at right angles. Finally, we apply Heron’s formula to determine the area when all four sides and one diagonal are known. Each method is explained step by step to help you understand the concepts thoroughly and apply them with confidence in problem-solving. https://cdn.kastatic.org/ka-youtube-converted/ot851BNYfqU.mp4/ot851BNYfqU.mp4 321 Area of Quadrilateral