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Math Help - area of shape

  1. #1
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    area of shape

    hi, i need to find the area of this shape:

    area of shape-area-shape.jpg

    im not really sure what to do for this but could i do, 7x11=77 77/6=12.8??
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  2. #2
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    e^(i*pi)'s Avatar
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    The area of a trapezium is given by A = h \left(\dfrac{a+b}{2}\right) where

    • a and b are the parallel sides
    • h is the perpendicular height


    In this question a = 11, b = 7 and h = 6

    I get an area of 54
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  3. #3
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    i don't understand! i understand 11+7=77/2=35.8 but how do i use the 6?
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  4. #4
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    e^(i*pi)'s Avatar
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    11+7 = 18 not 77!

    in the formula above h is the perpendicular height and in your diagram 6 is the perpendicular height
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  5. #5
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    oh sorry, misread it, though it said 11 x7

    thanks alot i understand now.
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