Answer:
The angle of elevation is 71.94 degrees.
Step-by-step explanation:
We are given the following in the question:
The front of an A-frame cottage has the shape of an isosceles triangle.
Height,h = 23 feet
Base,b = 15 feet
We have to find the angle of elevation of its roof.
The attached image shows the structure.
We use the relation,
Thus, the angle of elevation is 71.94 degrees.
Answer:
11
Step-by-step explanation:
if the two triangles are similar, that means that they are proportional to each other.
If you look at how they are shaped, they look the same, just one is smaller.
When you compare the two, you see that on triangle EFU, side EU corresponds with side VU on triangle VWU
EU = 7 and VU = 35
now divide so see what the multiplying factor is
35/7 = 5
so, when you divide the values on triangle VWU by 5, you get the values for triangle EFU
35/5 = 7
side UW corresponds with side UF
UW = 55 and UF = ?
55/5 = 11
Side UF = 11
Answer:
FE = 14.4
Step-by-step explanation:
Cos = Adj / Hypo.
So
Cos (F) = FE / DF
Cos (26) = FE / 16
FE = Cos (26) * 16
FE = 0.8988 * 16
FE = 14.4
Answer: He cannot see a ship that is 4.5 miles away.
Step-by-step explanation:
Since we have given that
Here, h is the eye level above the water
d is the distance away.
If h = 12 feet
We will get :
Hence, it is 10.39 feet away when eye level is 12 feet above the water.
Therefore , he cannot see a ship that is 4.5 miles away.