A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Find the length of a if the measure of angle A equals 62 degrees b = 15, and c = 21.
anonymous
 4 years ago
Find the length of a if the measure of angle A equals 62 degrees b = 15, and c = 21.

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1338954330473:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Do you know if one of the angles are 90 degrees? I mean in the problem, not in the picture i just drew.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i seen this prob before

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok then i'm not sure. Because you can use sin, cos, tan only when it's a right triangle. sorry :(

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1338954774600:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0do you know the law of cosines?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Yes, it's Law of Cosines problem

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a^2 = 21^2 + 15^2  2*21*15cosA

AravindG
 4 years ago
Best ResponseYou've already chosen the best response.1\[\huge \cos A =\frac{b^2+c^2a^2}{2bc}\]

AravindG
 4 years ago
Best ResponseYou've already chosen the best response.1bt i didnt get any medals :(
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.