https://www.khanacademy.org/math/od-math-class-8-new-book/x648dc020d7206462:quadrilaterals/x648dc020d7206462:rectangles-and-squares/e/square-and-its-properties 2026-01-14T04:19:20.590610231Z square and its properties In this exercise students learn about properties of squares and the relationship of squares with other quadrilaterals Khan Academy exercise https://www.khanacademy.org/math/revision-mh-math-class-6/x01cb2212e31ce997:week-3/x01cb2212e31ce997:quadrilaterals/v/intro-to-quadrilaterals-indian-accent 2025-06-05T06:01:43.515132284Z Intro to quadrilaterals Lets discover attributes and features of four-sided shapes, including parallelograms, rhombuses, rectangles, and squares. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Intro to quadrilaterals Lets discover attributes and features of four-sided shapes, including parallelograms, rhombuses, rectangles, and squares. https://cdn.kastatic.org/ka-youtube-converted/oVokhHwU9aQ.mp4/oVokhHwU9aQ.mp4 460 Rectangles and Squares https://www.khanacademy.org/math/cc-third-grade-math/quadrilaterals-3rd/imp-quadrilaterals/e/identify-quadrilaterals 2025-01-03T18:38:20.998556364Z Identify quadrilaterals Identify squares, rectangles, and rhombuses. Lindsay 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/cc-third-grade-math/quadrilaterals-3rd/imp-quadrilaterals/e/categorize-quads 2023-06-26T20:19:06.988565592Z Classify quadrilaterals  Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and recognize examples of quadrilaterals that do not belong to any of these subcategories. Lindsay exercise https://www.khanacademy.org/math/od-math-class-8-new-book/x648dc020d7206462:quadrilaterals/x648dc020d7206462:rectangles-and-squares/e/properties-of-rectangles 2026-01-14T04:19:20.590610231Z Properties of rectangles In this exercise students learn about the properties of rectangles as follows 1. The angles are all right angles (90°) 2. The opposite sides are of equal length. 3. The diagonals of a rectangle are equal and always intersect at their midpoints. 4. The opposite sides of a rectangle are parallel to each other. 5. Vertically opposite angles on diagonals are equal Khan Academy exercise