https://www.khanacademy.org/math/cc-fourth-grade-math/plane-figures/imp-classifying-geometric-shapes/v/quadrilateral-properties 2021-06-30T20:49:37Z Quadrilateral properties Learn about the properties of quadrilaterals, parallelograms, trapezoids, rhombuses, rectangles, and squares. Sal Khan video https://cdn.kastatic.org/googleusercontent/JGC4e5CKmDPc0EaGsoC76iS72j_U_G4PY5Pqha8QYVqeze74OxRmhuICMKdpz8HS_llastP2FKeGE1eDazyEHLI Quadrilateral properties Learn about the properties of quadrilaterals, parallelograms, trapezoids, rhombuses, rectangles, and squares. https://cdn.kastatic.org/ka-youtube-converted/5CeBlu260Rw.mp4/5CeBlu260Rw.mp4 307 Quadrilaterals and their properties https://www.khanacademy.org/math/cc-fifth-grade-math/properties-of-shapes/imp-quadrilaterals-2/v/quadrilateral-types-exercise 2023-07-17T20:04:18.610848495Z Quadrilateral types Learn to identify quadrilaterals such as kites, trapezoids, parallelograms, rhombuses, rectangles, and squares by side length, presence of parallel sides, and angle type. Sal Khan video https://cdn.kastatic.org/googleusercontent/HUjOvmPMa3weC4ohLEbNYrz2dEK6nSP4Uh1T5bWCrghuhebQwqwRbENk8-hpBp60exi1tPolvDkkOr1U_T96F3y5FQ Quadrilateral types Learn to identify quadrilaterals such as kites, trapezoids, parallelograms, rhombuses, rectangles, and squares by side length, presence of parallel sides, and angle type. https://cdn.kastatic.org/ka-youtube-converted/wPZIa3SjPF0.mp4/wPZIa3SjPF0.mp4 169 Quadrilaterals and their properties https://www.khanacademy.org/math/cc-fifth-grade-math/properties-of-shapes/imp-quadrilaterals-2/e/quadrilateral_types 2025-02-27T11:46:16.621461116Z Quadrilateral types Identify quadrilaterals based on pictures or attributes. Quadrilaterals included are parallelograms, rhombuses, rectangles, and squares. Christopher Wobbles Seymour exercise https://www.khanacademy.org/math/cc-third-grade-math/quadrilaterals-3rd/imp-quadrilaterals/e/categorize-quadrilaterals 2025-02-27T11:46:16.621461116Z Analyze quadrilaterals Classify and compare rectangles, rhombuses, and squares. Erin Kats exercise https://www.khanacademy.org/math/class-7-tg/x476671d9fb9d8978:quadrilaterals/x476671d9fb9d8978:types-of-quadrilaterals-and-their-properties/v/the-sum-of-interior-angles-of-a-quadrilateral 2026-01-16T08:50:31.625125949Z The sum of interior angles of a quadrilateral This video proves the Angle Sum Property of a quadrilateral using a clever trick: splitting the shape into two triangles. It’s a fundamental geometry skill for Class 8-10 that makes solving polygon problems easy. Stick around until the end to test your knowledge with practice questions! Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw The sum of interior angles of a quadrilateral This video proves the Angle Sum Property of a quadrilateral using a clever trick: splitting the shape into two triangles. It’s a fundamental geometry skill for Class 8-10 that makes solving polygon problems easy. Stick around until the end to test your knowledge with practice questions! https://cdn.kastatic.org/ka-youtube-converted/BoQgG_TYAG8.mp4/BoQgG_TYAG8.mp4 565 Quadrilaterals and their properties https://www.khanacademy.org/math/class-7-tg/x476671d9fb9d8978:quadrilaterals/x476671d9fb9d8978:types-of-quadrilaterals-and-their-properties/e/sum-of-interior-angles-of-a-quadrilateral 2026-01-16T08:50:31.625125949Z Sum of interior angles of a quadrilateral In this exercise students learn about the property of quadrilateral that the sum of all interior angles of a quadrilateral is 360 degrees. Khan Academy exercise