The height of the bin B is 38 feet.
How the height of the bin B is calculated.
Given that
tan α = 35/12
height of bin B = 65 sin θ
θ = α/2 (angle formed by the auger and the ground for bin B).
Let's calculate
tanα = 35/12
α = tan⁻¹(35/12)
α = 71.08⁰
But
θ = α/2
θ = 71.08/2
= 35.54⁰
Calculate the height of bin B using the formula:
h = 65 * sin(θ)
Substituting the value of θ, we get:
h = 65 * sin(α/2)
h = 65sin(θ)
h ≈ 65 *sin(35.54)
= 65 *0.5812
= 37.78 feet
≈ 38 feet
The height of the bin B is 38 feet.