Question 476222
{{{drawing(300,300,0,150,0,150,


triangle(20,20,85,20,85,110),
locate(52,65,120),
locate(52,20,65),
locate(90,65,x)


)
}}}


You do not even need trigonometry. By the Pythagorean theorem,


*[tex \LARGE 65^2 + x^2 = 120^2]


*[tex \LARGE x = \sqrt{120^2 - 65^2} \approx 100.9 ft]