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This page provides a list of educational videos related to Measuring the Area of a Trapezoid. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Measuring the Area of a Trapezoid.
Triangles
By MathPlanetVideos
Find out whether the triangles are right, isosceles, acute, scalene, obtuse or equilateral
Inverse Right Triangle Trigonometry
By kthomp271828
Inverse trig functions are used to find missing angles rather than missing sides. This video explains how to use inverse trig to find a missing angle.
Triangle Similarity - AA SSS SAS & AAA Postulates, Proving Similar Triangles, Two Column Proofs
By The Organic Chemistry Tutor
This geometry video tutorial provides a basic introduction into triangle similarity. it explains how to use two column proofs in order to prove if two triangles are similar using the mostly the AA postulates. Other triangle similarity postulates mentioned are the AAA, SSS, and SAS postulates. Theorems used in this video include the base angle theorem, theorems associated with parallel lines, alternate interior angle theorem, vertical angles, reflexive property, definition of an altitude, right angle congruence, and more. This geometry video contains plenty of examples and practice problems on triangle similarity.
3,4,5 Triangle Construction With A Compass
By Jennifer Jasensky
In this short video, students will learn how to create a 3,4,5 triangle using a compass. This video is meant for Math Connections year 2.
Congruent triangles
By MathPlanetVideos
Find the values of x and y so that the triangles are congruent.
Area of a triangle problem using formula 1/2 x ab x Sin(C) - YouTube
By mattam66
Area of a triangle problem using formula 1/2 x ab x Sin(C) - YouTube
Triangle inequality theorem | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
Salman Khan offers his intuition behind the triangle inequality theorem during this six-minute video lesson.
How to Apply Postulate 13 to Similar Triangles
By Khan Academy
Video uses an electronic black board with different colored pens. This video is an introduction to similar triangles. The person discusses the meaning of the term similar then goes on to discuss similar triangles (they have all the same angles), and why they are considered similar (ratio of corresponding sides is the same). Video then gives examples to help students understand the terms used and how to find similar angles. Good quality video. Good for middle elementary and middle school students.
History of Mathematics : The History of Pascal's Triangle
By eHow
The history of Pascal's triangle has little to do with Pascal himself. Learn the history of Pascal's triangle with tips from a mathematics instructor, Steve Jones, who is an experienced high school mathematics and science teacher Filmmaker: Paul Volniansky
Other triangle congruence postulates | Congruence | Geometry | Khan Academy
By Khan Academy
SSS, SAS, ASA and AAS postulates for congruent triangles. Showing AAA is only good for similarity and SSA is good for neither
Geometry - Triangle Congruence - SSS SAS ASA postulate through constructions.wmv
By Soowook Lee
Geometry - Triangle Congruence - SSS SAS ASA postulate through constructions.wmv
The converse of the Pythagorean theorem and special triangles
By MathPlanetVideos
Find the value of x in the right triangle.
Observing Properties of Pascal's Triangle
By malcfifty
Students will learn a variety of properties observed from the Pascal's triangle.