Question

In the image below, DE || BC. Find the measure of EC. Set up a proportion and solve for the measure. Show your work, round to nearest tenth, and label your answer. Work: ___EC = ____

Answer 1

`\begin{gathered} (AB)/(AD)=(AC)/(AE) \\ SOLVING\text{ AC} \\ (AB)/(AD)\cdot AE=AC \\ \\ (11)/(9)\cdot4=AC \\ AC=4.9 \\ EC=AC-AE \\ EC=4.9-4 \\ EC=0.9 \\ \text{The value of EC is 0.9} \end{gathered}`