Question

I need someone to check my answer please?

Answer 1

Law of sines and Cosines. Solve each triangle. Round your answers to the nearest tenth.
1) m<C=11 degrees, c=31ft, b=28ft

Answer 2

I got B=10 degrees, A=159 degrees and a=58ft

Answer 3

Ok, first of all, which law are you using? Sines or Cosines?

Answer 4

Okay When I found Angle B i used the law of sines and for angle A i just subtracted 11 and 10 from 180. And for side a i used law of cosines

Answer 5

Did you solve for the side and angle A?

Answer 6

Yes

Answer 7

ok, give me a minute to check your answers with a calculator.

Answer 8

Okay.

Answer 9

Angle B = 9.92 degrees (let's round to 10)

Angle A = 159 degrees

Side A = 59.22 units

Answer 10

Okay How did you get 59.22?

Answer 11

(Sin 11 / 31 ) = (Sin 159 / A)

Answer 12

Then you turn that into 31sin159/sin11?

Answer 13

Yeah, I used my calculator to get an approx. answer, which was 58.22 not 59.22, sorry.

Answer 14

So i was right? :D

Answer 15

Yeah, you were, good job! :D

Answer 16

Ok i Have a question but why didnt you use a^2=28^2+31^2-2(28)(331)cos159

Answer 17

Because I'm a freshman, and I haven't learned the LAw of cosines yet xD

Answer 18

Lmfao OH. Im a senior XD!

Answer 19

Ahh ok, see you know way more than I do xD

Answer 20

LOOL. Good luck in high school XD thanks for your help.

Answer 21

Thank you lol