X=10, the two triangles are alike except one is double the size of the other. hope this helps
Answer:

<h3>✏
<u>cm²</u></h3>
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1/6 because one divide by six equal 0.166666.....
i have answers but im not sure if there correct but ill write them down anyway a.6 b.2,3,6,9 c.first of all its spelled dice not die and yes because it all equals 100:)
Your answer would be 15.6