55 819
Assignments Done
97,2%
Successfully Done
In December 2017
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Trigonometry Question for Marc Sunga

Question #6118
a student stands a certain distance from a building and measures the angle to the top of the building 18.8. the student then walks 24n straight towards the build and measures the angle to the top of the building as 20.2 what is the height of the building
Expert's answer
Let h - be the height of building, d1 - first distance to the building and d2 - second distance.Student, bottom and top points of building are forming right-angled triangle where h and distance d (d1 or d2) are cathetus, using that
fact:
1) ctg 18.8 = d1 / h and d1=h*ctg 18.8

2) ctg 20.2 = d2 / h and d2=h*ctg 20.2

also is known that d1 - d2 = 24
then
h*ctg 18.8 - h*ctg 20.2 = 24,

h*(ctg 18.8 - ctg 20.2) = 24

h = 24 / (ctg 18.8 - ctg 20.2) = 24 / 0.219 = 109.59

Answer: the height of the building is 109.59 m

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question