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0
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I dont understand how to do this. Please show steps

Jul 16, 2020

#1
+25541
+1

I dont understand how to do this. Please show steps

EC=

$$\text{Let ES=ER=30} \\ \text{Let DT=DR=17} \\ \text{Let TC=SC=32} \\ \text{Let the perimeter is c+d+e}$$

$$\begin{array}{|rcll|} \hline c+d+e &=& 2*17+2*30+2*32 \\ \mathbf{c+d+e} &=& \mathbf{158} \\ \hline \end{array}$$

The perimeter of $$\triangle DEC$$ is $$\mathbf{158}$$

Jul 16, 2020