Mathematics
Grade9
Easy

Question

Find the area of the following trapezoid:

  1. fraction numerator 125 plus 125 square root of 3 m squared over denominator 2 end fraction
  2. fraction numerator 125 plus 25 square root of 2 m squared over denominator 3 end fraction
  3. fraction numerator 125 plus 25 square root of 3 m squared over denominator 2 end fraction
  4. fraction numerator 25 plus 125 square root of 3 m squared over denominator 2 end fraction

The correct answer is: fraction numerator 125 plus 25 square root of 3 m squared over denominator 2 end fraction




    Area of a trapezoid = ½ x sum of parallel sides x distance between them.
    In this question, the distance between them is not given.
    Area of the trapezoid = 1/2x(10  + 15 + 5√3 ) x 5 = (25 + 5√3) x 5/2
    = (125 + 25√3)/2 sq m

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