Answer:
5 m
Step-by-step explanation:
[tex]\triangle GFE \sim\triangle DCE...(Given)\\\therefore \frac{GF}{DC}=\frac{FE}{CE}...(By\: c.s.s.t.)\\\\\therefore \frac{4}{8}=\frac{d}{10}\\\\\therefore \frac{1}{2}=\frac{d}{10}\\\\\therefore d = \frac{10}{2}\\\\\therefore d = 5\: m\\[/tex]
