SOLUTION: Anyway you can help show me how the answer was given. I must be missing a step and want to verify if possible.
1.Missy stands at a horizontal distance of 45 ft from
the base of
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-> SOLUTION: Anyway you can help show me how the answer was given. I must be missing a step and want to verify if possible.
1.Missy stands at a horizontal distance of 45 ft from
the base of
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Question 1156144: Anyway you can help show me how the answer was given. I must be missing a step and want to verify if possible.
1.Missy stands at a horizontal distance of 45 ft from
the base of a building. The angle of elevation from
Missy to the top of the building is 48 degrees. What is the
height of the building to the nearest foot?
2.The flagpole in Terry’s schoolyard is 42 ft tall. On a sunny
day,the flagpole casts a shadow 20 ft long. What is the angle
of elevation of the sun at that moment? Round to the nearest
tenth of a degree.
3.Kurt leans a 20-ft long ladder against the side of his house.
The ladder reaches to a height of 18.9 feet up the side of the
house. What is the angle of elevation of the ladder to the
nearest tenth of a degree?
4.You sight the top of a 50-ft tree from
a point on the ground 50 ft from the base of the tree. What is
your angle of elevation? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! 1.Missy stands at a horizontal distance of 45 ft from the base of a building.
The angle of elevation from Missy to the top of the building is 48 degrees.
What is the height of the building to the nearest foot?
:
this will form a right triangle, 45 ft leg is adjacent to the 48 degrees angle
and the side opposite to this angle is the height (h) of the building
Use the tangent of the 48 degree angle
tan(48) =
h = 45 * tan(48)
using your calc
h = 49.98 ~ 50 ft
:
:
2.The flagpole in Terry’s schoolyard is 42 ft tall.
On a sunny day, the flagpole casts a shadow 20 ft long.
What is the angle of elevation of the sun at that moment?
Round to the nearest tenth of a degree.
:
We can use the tangent in this one too, A=angle of sun elevation
Tan(A) =
use your calc tan^-1
A = 64.5 degrees
:
:
3.Kurt leans a 20-ft long ladder against the side of his house.
The ladder reaches to a height of 18.9 feet up the side of the house.
What is the angle of elevation of the ladder to the
nearest tenth of a degree?
:
In this one the ladder is the hypotenuse of the right triangle
Use the sine of the angle, the building is the side opposite the angle
Sin(A) =
A =
:
:
4.You sight the top of a 50-ft tree from
a point on the ground 50 ft from the base of the tree.
What is your angle of elevation?
:
This the same as the first one except the tan^-1 = 1 which we know is 45 degrees
