AllExperts > Geometry 
Search      
Geometry
Volunteer
Answers to thousands of questions
 Home · More Geometry Questions · Answer Library  · Encyclopedia ·
More Geometry Answers
Question Library

Ask a question about Geometry
Volunteer
Experts of the Month
Expert Login

Awards

About Us
Tell friends
Link to Us
Disclaimer

 
 
 
 
About Azeem Hussain
Expertise
I can answer virtually any kind of question dealing with of Math 536 and below, my forte being in parabolic functions and analytical geometry. I'm currently learning Linear Algebra, and cannot answer questions that deal with subject matter more advanced than that.

Experience
I am neither a professor nor a teacher of this subject. I am merely a student who is gifted at mathematics and enjoys being of service to his community. I frequently tutor people in math and the results are usually great.

Publications
Reflections, Riverside School Board (2005, 2006)

Education/Credentials
Diploma of Secondary Studies from Chambly Academy High School, and IBO-MYP certificate as well. My lowest mark on a high school math final was 97%, peaking at 99% in 2006 and 2007 (second-highest Math 436 mark in the province). Being a Quebecer, I am fluent in English and French and can respond to questions easily in both languages.

Awards and Honors
Pascal Math Competition, School Champion(2007)

 
   

You are here:  Experts > Science > Math for Kids > Geometry > Basic Trig - Airplane

Geometry - Basic Trig - Airplane


Expert: Azeem Hussain - 9/22/2009

Question
An airplane takes off with an angle of elevation of 25º. It flies 1,100 feet before the angle levels off. What is the plane's altitude at this point?

--i just don't understand what equation i would need to use to find the answer to this problem.
there are others like this, but this would help give me an understanding

Answer
Hi Akire,

Sketch the ground.  Sketch the diagonal at 25 degrees to the ground.  Connect the diagonal to the ground.  You now have a right triangle.

A right triangle means you can do basic trigonometric operations, such as sin, cos, and tan.  You know the diagonal (1,100 feet) and you need to find the altitude.  Relative to the given angle, the relevant sides for this problem are the opposite side and the hypotenuse.  The trigonometric operator needed is sine.
sin< = opp/hyp
sin(25)=opp/(1100)
opp=1100sin(25)

The plane's altitude is exactly [1100sin(25)] feet, or approximately to 464.88 feet.

Thanks for asking,
Azeem

Add to this Answer   Ask a Question


 
User Agreement | Privacy Policy | Kids' Privacy Policy | Help
Copyright  © 2008 About, Inc. AllExperts, AllExperts.com, and About.com are registered trademarks of About, Inc. All rights reserved.