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12 October, 18:19

What is the formula for circumference, area for triangles, and area of trapezoids?

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Answers (2)
  1. 12 October, 19:11
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    C = 2pi (r)

    Triangle = 0.5 x b x h

    Trapezoid: (a+b) h/2
  2. 12 October, 20:48
    0
    Answer:circumference is C=pie * radius

    area of triangle is (b*h) : 2

    area of a trapezoid is a = (b1+b2) * h) : 2
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