Login|Contact Us
Question and Answer

Pre-Calculus

Ask a Pre-Calculus Question, Get an Answer ASAP!

  • Ask A Question
  • Browse Answers
  • Meet The Experts
  • How JustAnswer Works

Use the law of sines to solve the triangle, C=57°40, c=34.1,

 

Customer Question

Use the law of sines to solve the triangle, C=57°40', c=34.1, b=26.1

Submitted: 356 days and 20 hours ago.
Category: Pre-Calculus
Value: $30
Status: CLOSED

Accepted Answer

Picture
Expert:  namstech replied356 days and 20 hours ago.

Thanks for visiting JustAnswer and your question.

Let a, b and c be the sides of the triangle and A, B and C be the corresponding opposite angles. The law of sines states that:

a/sinA = b/sinB = c/sinC

We are given angle C and sides c and b as:

C = 57.6667 degrees

b = 26.1
c = 34.1

Now, we can use

b/sinB = c/sinC

to find angle B.

sinB = b sinC/c

sinB = 0.6467

B = 40.3 degrees = 40 degrees 17.7 minutes

Now, sum of angles in a triangle is 180. i.e.

A + B + C = 180

A = 180 - (B + C) = 180 - (40.3 + 57.6667) = 82.03 degrees

Now, using law of sines again

a/sinA = c/sinC

a = c sinA/sinC = (34.1) sin(82.03)/sin(57.6667) = 39.96

Hence the three sides are:

a = 39.96

b = 26.1

c = 34.1

and the three angles are:

A = 82.03 degrees

B = 40.3 degrees

C = 57.6667 degrees

I hope this helps.

Expert TypeElectrical Engineer
Category: Pre-Calculus
Pos. Feedback: 100.0 %
Accepts: 4
Answered: 6/27/2012

Experience: M.S. Signals and Information Processing

Ask this Expert a Question >
 
Tweet

2 Tutors are Online Right Now

Ask Your Question Now
Ask A Tutor
Type Your Pre-Calculus Question Here...
characters left:

Top Pre-Calculus Experts

See More Tutors

In The News

Nbc
Washington Post
New York Times
Cnn
Learn More

How It Works

  • Ask an Expert
  • Get a Professional Answer
  • Ask Followup Questions
  • 100% Satisfaction Guarantee
Learn More

Ask a Tutor

Get a Professional Answer. 100% Satisfaction Guaranteed.
75 Tutors are Online Now
Type Your Pre-Calculus Question Here...
characters left:
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.
Truste
Contact Us | Terms of Service | Privacy & Security | About Us | Our Network
© 2003-2013 JustAnswer LLC
  • Pearl.com
  • JustAnswer UK
  • JustAnswer Germany
  • JustAnswer Spanish
  • JustAnswer Japan