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How to determine if three lengths form a triangle

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How to determine if three lengths form a triangle

261,615 views October 26, 2013 1:48

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ChannelBrian McLogan

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Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The Pythagoras theorem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

Pythagoras theorem can also be used to determine if a triangle is a right triangle or not. The pythagoras ineaquality can be used to determine if a triangle is an acute, right, or obtuse angle. This can be helpful if you are just given the lengths of each side of a triangle rather than trying to graph the triangle.

About this tutorial

Brian McLogan published this 1:48 video tutorial on October 26, 2013. It has been watched 261,615 times on YouTube.

Category
Education
Duration
1:48
Published
October 26, 2013
Views
261,615
Likes
2,344

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Further reading

  • TRIANGLE TESTER - Acute, Right, Obtuse 1728.org

    Input 3 triangle side lengths (A, B and C), then click "ENTER". This calculator will determine whether those 3 sides will form an equilateral, isoceles, acute, right or obtuse triangle or no triangle at all. Without Usi…

  • How Do You Determine Whether a Triangle Can Be Formed Given ... virtualnerd.com

    Note: If you're given 3 side measurements, there's a quick way to determine if those three sides can form a triangle. Follow along with this tutorial and learn what relationship these sides need in order to form a trian…

  • How to Determine if Three Side Lengths Are a Triangle: 3 Steps wikihow.com

    To determine if 3 side lengths are a triangle, use the triangle inequality theorem, which states that the sum of 2 sides of a triangle must be greater than the third side. Therefore, all you have to do is add together e…

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