Question Number 88892 by TawaTawa1 last updated on 13/Apr/20
Commented by mr W last updated on 13/Apr/20
$$\frac{{x}\:{m}}{\mathrm{6}\:{m}}=\frac{\mathrm{5}\:{cm}}{\mathrm{8}\:{cm}} \\ $$$$\Rightarrow{x}=\frac{\mathrm{30}}{\mathrm{8}}=\mathrm{3}.\mathrm{75}\:{m} \\ $$$${the}\:{distance}\:{must}\:{be}\:{at}\:{least}\:\mathrm{3}.\mathrm{75}{m}. \\ $$
Commented by TawaTawa1 last updated on 13/Apr/20
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$