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Learn how to identify and classify different types of quadrilaterals based on their sides, angles, diagonals and symmetry. See examples, diagrams and interactive quizzes for squares, rhombuses,...
Learn how to classify quadrilaterals based on their angles, sides and properties. See examples of squares, rectangles, parallelograms, rhombi, trapeziums and kites with diagrams and worksheets.
Learn what a quadrilateral arrowhead is and how to identify its features. Watch a video that shows how the diagonals, angles and exterior line of an arrowhead shape.
- 2 min
- 10.5K
- JoAnn's School
Learn how to find missing angles in a quadrilateral using angle properties and equations. See examples of different types of quadrilaterals and their angle sums, and download a free worksheet.
Student Solutions. ABCD is a non-convex quadrilateral. The points P, Q, R and S are the midpoints of the edges of ABCD. You can change the shape of the quadrilateral ABCD. What do you notice about the quadrilateral PQRS and its area as ABCD changes? If you say that what you have noticed is always true, then you are making a conjecture.
Learn about the properties and angles of quadrilaterals, such as squares, rectangles, parallelograms, rhombuses, trapeziums and kites. Find out how to calculate angles using the sum of 360° and...
Learn how to classify quadrilaterals based on their properties, such as number of sides, angles, parallel and perpendicular lines. See examples, videos, activities and quizzes on different types of...
