Video uses an electronic black board with different-colored pens. In this video. Mr. Khan discusses the measurement of alternate interior angles, corresponding angles and how they are similar. Triangles are drawn in two parallel lines and a transversal. Narrator shows how to figure out the length of the sides of the angles when three sides are known. Good quality video. Good for middle elementary and middle school students.
Similar Triangles, Part 2 - Khan Academy is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSG.SRT.B.5,HSG.SRT.A.2,.
1. HSG.SRT.B.5 : Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures..
2. HSG.SRT.A.2 : Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides..
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