Exercise condition:

5
\(ΔABC\) is an isosceles with \(AB = AC =\) 11 \(cm\) and \(BC =\) 10 \(cm\). The height \(AD\) from \(A\) to \(BC\) is 8 \(cm\). Find the area of \(ΔABC\) and the height from \(C\) to \(AB\), i.e., \(CE\).
 
ISO.png
 
The area of \(ΔABC\) is  \(cm²\).
 
The height of the \(CE\) is  \(cm\).
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