Question 113184
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            Again, @CubeyThePenguin  "solves"  the problems even without reading their descriptions.


            I must go to fix after him / (her)



<pre>
    {{{((20+x)/2)*16}}} = 224


    20 + x = {{{(224*2)/16}}} = 28


      x    = 28 - 20 = 8.


<U>ANSWER</U>.  the length of the other base is 8 meters.
</pre>

Solved.


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For your safety, &nbsp;ignore the post by  &nbsp;@CubeyThePenguin, &nbsp;since it is &nbsp;&nbsp;T O T A L L Y  &nbsp;&nbsp;W R O N G.