Answer:
11.2°
Explanation:
Using the trigonometry ratio,
Note: Assuming the ladder, the wall and the horizontal forms a right angle triangle.
Cosθ = Opposite/Hypotenuse
SinΦ = O/H.......................... Equation 1
Where Φ = angle between the ladder and the wall, O = opposite, H =Hypotenuse.
make Ф the subject of the equation,
Ф = sin⁻¹(O/H).................. Equation 2
Given: O = 3.3 foot, H = 17 foot
Ф = sin⁻¹(3.3/17)
Ф = sin⁻¹(0.194/
Ф = 11.19°.
Ф = 11.2° ( to the nearest tenth degree)
Hence the ladder and the wall makes an angle of 11.2°
Answer:
3.5 Hours
Explanation:
I believe all that has to be done is dividing 84 by 24, which results in 3.5, or 3 and a 1/2 hours.
