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Figure 107 : Equilateral triangle and square

    Equilateral triangle and square


  • Q01 | - Diagram
  • Q02 | - Equilateral triangle and square
  • Q03 | - Questions


    Q01. Diagram


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    Q02. Equilateral triangle and square

    Construction
    • Draw an equilateral triangle
    • Draw a square
    • Let each side be 1
    • Height of triangle = Sqr(3)/2
    • Find ration of area of square to triangle

    Solution
    • Angle A = 60 degrees
    • Right angle triangle APS, angle APS = 30 degrees
    • Hence AS = (AC/2)/2 = 1/4
    • Hence S is mid point of AC
    • Since PS parallel to height, hence P is mid point of AC
    • Hence PS = height/2 = h/2
    • Area of triangle
      • = (AB*h)/2
      • = (1*Sqr(3)/2)/2
      • = Sqr(3)/4
    • Area of square
      • = PS^2 = (h/2)^2
      • = (Sqr(3)/4)^2
      • = 3/16
    • Ratio of square area to triangle area
      • = (3/16)/(Sqr(3)/4)
      • = Sqr(3)/4

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    Q03. Questions
    Questions
    • 1. Right angle triangle, side opposite 30 degree angle is half of hypothese
    • 2.

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