Answer :
Answer:
12 feet 8 inch long cast a shadow
Step-by-step explanation:
A person 6 feet tall standing 18 feet away a lamppost cast a 9 foot shadow.
than move 4 feet than total distance is 22 feet
According to trigonometry rule make 30 degree angle
[tex]tan\left ( 30\ \right )^{o}=\frac{p}{b}[/tex]
[tex]\left ( \frac{1}{\sqrt{3}} \right )=\left ( \frac{x}{18+4} \right )[/tex]
or
[tex]x\sqrt{3}=22[/tex]
than
[tex]x=\frac{22}{\sqrt{3}}[/tex]
[tex]=12feet[/tex] [tex]8 inch[/tex] answer