A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

What would I use to solve the following? Given triangle ABC with b = 17, c = 26, and m<A=124 degrees, find a. Round the cosine value to the nearest thousandth and answer to the nearest hundredth. I understand the law of Sines and law of cosines, but since this doesn't have an angle with an opposite side given, I'm a bit thrown. I know there is a tan(B-C) etc formula fos SAS; but I can't figure it out. Thank you

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It would look like this |dw:1437017410485:dw|

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    got it :) a^2=b^2+c^2-(2)(b)(c) cos(A)

  3. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.