SOLUTION: the parallel sides of a trapezium are 11 cm and 13cm if the area of the trapezium is 84cm2 calculate the distance between the parallel sides solution

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Question 1110510: the parallel sides of a trapezium are 11 cm and 13cm if the area of the trapezium is 84cm2 calculate the distance between the parallel sides solution
Answer by ikleyn(52781) About Me  (Show Source):
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1.  The length of the middle segment of the trapezoid is %281%2F2%29%2A%2811%2B13%29 = 12 cm.


2.  The area of the trapezoid is the product of the middle segment length by the altitude:


        Area = 12*h = 84,


    which implies  h = 84%2F12 = 7 cm  for the altitude.

Solved.