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Slides on Classifying Quadrilaterals.
By MathLambert
Video slides and explanations on classifying quadrilaterals.
Topic 15.3: Classifying Quadrilaterals
By Dylan Peters EDU
Students will be able to identify and classify quadrilaterals based on the sides, angles, and other properties.
Symmetry of two-dimensional shapes
By Khan Academy
Sal solves the following problem: Two of the points that define a certain quadrilateral are (0,9) and (3,4). The quadrilateral has reflective symmetry over the line y=3-x. Draw and classify the quadrilateral.
Geometry problems on the coordinate plane
By Khan Academy
Watch Sal classify a quadrilateral as a square, rhombus, rectangle, parallelogram, or trapezoid given its four vertices.
Properties of shapes
By Khan Academy
Let's see how well you classify shapes by determining what properties match each kind of quadrilateral.
Properties of shapes
By Khan Academy
Let's see how well you classify shapes by determining what properties match each kind of quadrilateral.
Symmetry of two-dimensional shapes
By Khan Academy
Sal solves the following problem: Two of the points that define a certain quadrilateral are (-4,-2) and (0,5). The quadrilateral has a������������reflective symmetry over the lines y=x/2 and������������y=-2x + 5.������������Draw and classify the quadrilateral.
Sum of all angles in quadrilateral is 360° (Theorem and Proof)
By dostotussigreatho
This is a Math video. This is our third webisode (WB-3) on "Series 8 -- Quadrilaterals". In this video, we learn that sum of all four internal angles in a quadrilateral is 360°. Then we go ahead and prove this theorem.
number of triangles from polygons
By Elites Grid Academy
A brief video detailing the the number of triangles from polygon
Understand Quadrilaterals - Trapezoid, Rhombus, Parallelogram, Rectangle, Square, Kite - [13]
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Quadrilateral angles
By Khan Academy
Sal proves that opposite angles of a parallelogram are congruent.