19.885 feet tall
The problem is similar triangles so you divide 24/7 to get the relation between them then multiply by 5.8 to get the height
The slope of a perpendicular line is the opposite reciprocal
so the slope, 6, will become -1/6
The answer is 12. I would do it by setting up a proportion:
8 = x
10 15
Then cross multiply to get
10x=8*15
10x=120
x=12
X=13, Subtract 9, And add 6 and 19 To both sides. then Divide by three
