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The diagram is not drawn to scale, but the measurements of the line segments and the right angles are correctly labeled. As shown in the diagram, $BE = EC.$ Are the red and blue triangles similar? If so, enter the name of the side of the blue triangle that corresponds to $AB.$ If not, enter "no."

 

ALSO

The lengths of four sides of a trapezoid have ratios  The area of the trapezoid is  What is its perimeter?

 Nov 2, 2019
edited by Guest  Nov 2, 2019
 #1
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I assume this is an AOPS problem, I also assume that you forgot to provide a picture. Whoops!

 Nov 2, 2019
 #2
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The answer to the first problem is DE.

 

The answer to the second question is 20 sqrt(2).

 Nov 2, 2019

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