Watch Video on Polygons - Geometry Help
Sunday, June 21st, 2009
Access full lesson containing this video at: http://www.yourteacher.com/geometry/polygons.php 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).
Duration : 0:2:27
Access full lesson containing this video at: http://www.yourteacher.com/geometry/pythagoreantheorem.php Students learn the Pythagorean Theorem, which states that the sum of the squares of the lengths of the legs of a right triangle is equal to the square of the length of the hypotenuse, or a^2 + b^2 = c^2. Students are then asked to find missing side lengths of right triangles using the Pythagorean Theorem.