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Curated Video
Diagonal lines of symmetry
Pupil outcome: I can reflect shaded squares and polygons in a diagonal line of symmetry. Key learning points: - A line of symmetry does not have to be vertical or horizontal. You can reflect shapes in a diagonal line of symmetry. - You...
Curated Video
Identifying Line Symmetry in Irregular Polygons
In this video, the teacher explains how to identify line symmetry in irregular polygons. They discuss the three options for line symmetry - horizontal, vertical, and diagonal - and emphasize the importance of having matching parts when...
Curated Video
Identifying Line Symmetry in Regular Polygons
In this video, the teacher explains how to determine the number of lines of symmetry in regular polygons. They discuss the three options for line symmetry: horizontal, vertical, and diagonal. Using examples of an equilateral triangle,...
Curated Video
Congruent Figures and Lines of Symmetry
Mr. Addit defines the terms: congruent figures and lines of symmetry. He then models how to determine if figures are congruent and where lines of symmetry can be drawn.
msvgo
Curves and Their Types
It defines a simple closed curve, a polygon, a triangle and a quadrilateral. It also explains sides, vertices and diagonals of a polygon.
Brian McLogan
Determine if a set of points is a trapezoid or not
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...
Curated Video
Checking understanding of perimeter
Pupil outcome: I can find the perimeter of many polygons or compound shapes. Key learning points: - The perimeter of any polygon can be found by summing the sides. - The perimeter of shapes made from polygons can be found. - Some methods...
Curated Video
Symmetrical and Non Symmetrical Shapes
Distinguish symmetrical and non-symmetrical figures.
Brian McLogan
Using a set of points determine if the figure is a parallelogram using the midpoint formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...
Brian McLogan
Using the slope formula to determine if points make up a rectangle
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...
Khan Academy
Rhombus Diagonals, Quadrilaterals, Geometry
Delving into proof that the diagonals of a rhombus are perpendicular to each other, this lecture evaluates the angles and sides of this figure. It would serve as a great test preparation activity.
Curated OER
How Do You Find the Sum of the Interior Angles of a Polygon?
Squares, pentagons, triangles, polygons. How is it possible to figure out the sum of the interior angles of any of these multi-faceted shapes? There's got to be a formula. Of course there's a formula. That's what algebra is all about,...
Flipped Math
Unit 5 Review: Quadrilaterals and Polygons
Yes, it will be on the test. Young mathematicians first view an educational video to refresh their memories about material from the unit. They then complete a review worksheet where they find the measures of interior angles of polygons,...
Flipped Math
Parallelogram Properties
Provide pupils with problems on applying properties of parallelograms. The second of seven installments in the Geometry - Quadrilaterals and Polygons unit focuses on parallelograms. Viewers of the instructional video learn about the...
Flipped Math
Conditions for Rectangles, Rhombuses and Squares
Here's a special lesson about some special parallelograms. The fifth of seven parts in the Geometry - Quadrilaterals and Polygons unit focuses on the conditions for rectangles, rhombuses, and squares. Young mathematicians use these...
Sophia Learning
Sophia: Diagonal
In this video tutorial, the instructor defines and provides examples of diagonals in polygons. Students can check their understanding with an assessment. [3:21]
Imagine Learning Classroom
Learn Zillion: Lesson Video for 'Create a Right Triangle on a Coordinate Plane'
In this lesson, you will learn how to create a right triangle on a coordinate plane by using two points that form a diagonal line segment. [4:39]