What is Equilateral triangle: Definition and 105 Discussions

In geometry, an equilateral triangle is a triangle in which all three sides have the same length. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°. It is also a regular polygon, so it is also referred to as a regular triangle.

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  1. I

    Equilateral triangle electrostatics problem

    Three point charges of +2μC, +3μC and +4μC are at the vertices of an equilateral triangle ABP, respectively, having sides of 10cm. What is the resulting force R acting on the +4μC charge? the hint in class is to use the law of cosines this is how i set it up force acting on 4uc from...
  2. M

    3 charges arranged in the form of an equilateral triangle

    Hello everyone, I'm confused on how you find the distance between the charges. They want you to find the force on q3 due to q1 and q2. They are arranged in an equilateral triangle. It looks like: 2 | |....(q3) | 1 | | (q1)-------1--------(q2)...
  3. L

    How to Calculate the Force on a Charge in an Equilateral Triangle?

    Three charges reside on an equilateral triangle with sides equal to d. All three charges are equal in magnitude and sign. What is the magnitude of the force F' on one of the three charges q due to the total electric field from the other two charges q on the corners of the equilateral...
  4. N

    Proving an Equilateral Triangle: Trig Identities Explained

    Trig identities please help In triangle ABC if sin (A/2) sin (B/2) sin (C/2) = 1/8 prove that the triangle is equilateral please show steps
  5. G

    Express the area of an equilateral triangle as a function

    If A=x^2 and 2y-3x=12, express A as a function of y. i got A= 4/9y^2 - 2/3y + 20 is that right? and Express the area of an equilateral triangle as a function of its side.
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