SOLUTION: A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon. What is the angle of elevation of the sun when a 35-ft mast casts a 20-ft shadow

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon. What is the angle of elevation of the sun when a 35-ft mast casts a 20-ft shadow      Log On


   

Question 26352: A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon.
What is the angle of elevation of the sun when a 35-ft mast casts a 20-ft shadow
Answer by uknouluvme89(30) About Me  (Show Source):
You can put this solution on YOUR website!
What is the angle of elevation of the sun when a 35-ft mast casts a 20-ft shadow
The first thing you would do is make a triangle with the height as 35 ft and the bottom side as 20ft.
Let x= the angel of elevation
In order to find the angle of elevation, use the trigonometric ratio of tangent. tangent = opposite/adjacent
the equation will be:
tan x = 35/20
tan^-1(x) = 35/20
x = 60.2551187 degress
* I gave you the entire number including all the decimal places because you didn't specify whether or not you needed it rounded.
Hope I was of some help!