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Solving problems with similar and congruent triangles
By Khan Academy
Sal uses the similarity of triangles and the congruence of others in this multi-step problem to find the area of a polygon.
Defining similarity through angle-preserving transformations
By Khan Academy
Sal is given pairs of polygons, and then he determines whether they are similar by trying to map one onto the other using angle-preserving transformations.
Defining similarity through angle-preserving transformations
By Khan Academy
Sal is given pairs of polygons, and then he determines whether they are similar by trying to map one onto the other using angle-preserving transformations.
Exploring angle-preserving transformations and similarity
By Khan Academy
Sal is given pairs of polygons, and then he determines whether they are similar by trying to map one onto the other using angle-preserving transformations.
Defining similarity through angle-preserving transformations
By Khan Academy
Sal is given pairs of polygons, and then he determines whether they are similar by trying to map one onto the other using angle-preserving transformations.
Quadrilaterals, polygons and transformations
By MathPlanetVideos
Find the measures of angles of these figures
number of triangles from polygons
By Elites Grid Academy
A brief video detailing the the number of triangles from polygon
10.7 Inscribed and Circumscribed Polygons (Lesson)
By AutenMath
This video offers a lesson on polygons inscribed in and circumscribed about a circle.
12: Duality for polygons and the Fundamental Theorem of Algebra
By UNSWelearning
This is a video lecture course on Algebraic Topology by Prof. N J Wildberger of the School of Mathematics and Statistics, The University Of New South Wales, Australia. It features a visual approach to the subject that stresses the importance of familiarity with specific examples. It also introduces rational curvature, a simple but important innovation.......
10.7 Inscribed and Circumscribed Polygons (Practice)
By AutenMath
10.7 Inscribed and Circumscribed Polygons (Practice)
Types of Polygons - MathHelp.com - Geometry Help
By yourteachermathhelp
Students learn the definition of a polygon as well as the definitions of concave and convex polygons. Students also learn the following polygon classifications: triangle (3 sides) quadrilateral (4 sides) pentagon (5 sides) hexagon (6 sides) heptagon (7 sides) octagon (8 sides) nonagon (9 sides) decagon (10 sides) dodecagon (12 sides).
K to 12 curriculum talk
By Lumos Learning
DepEd Undersecretary for Programs and Projects Dina Ocampo discussing the key features and details of the K-12 curriculum.