Question

How many triangles can be formed knowing that

A=40 degrees
C=75 degrees
c=20

Answer 1

I'm getting two triangles..am I right?

Answer 2

@dan815 @jdoe0001 @jim_thompson5910

Answer 3

@Jhannybean

Answer 4

Just curious how you would even approach this?

Answer 5

You would use the laws of sin, and then there are a bunch of rules you follow that are suppose to determine this. I want to check my answer, through.

Answer 6

Oh wait I didn't see C and c I was thinking that was an angle of 20 and it didn't equal 180 hahaha. Ignore me :-)

Answer 7

@StudyGurl14

Answer 8

Haha np.

Answer 9

@butterflydreamer

Answer 10

hold on a sec. I'm not excellent at this, but I'll check your answer.

Answer 11

Using the laws of sin, I got a=13.3, b=18.76, h=12.05

Answer 12

H<a<b, two triangles..?

Answer 13

Online answer key is actually saying one triangle, but I don't know why.

Answer 14

you got a right. still checking other stuff

Answer 15

h should equal a

Answer 16

I think...I think you should take a look at these websites. They'll probably help you more than I can. I really hate the ambiguous case with law of sines.
http://regentsprep.org/Regents/math/algtrig/ATT12/lawofsinesAmbiguous.htm
http://homepages.ius.edu/MEHRINGE/M126/Notes%20Fall%202012/Section%207.2%20The%20Ambiguous%20Case%20of%20the%20Law%20of%20Sines.htm

Answer 17

h=bsinA right?

Answer 18

Because my h is a whole 1 off from a

Answer 19

I don't know...i'll check my pre-calc book. i don't think we had an h value when i did it a few months ago

Answer 20

my a and b values are correct though right?

Answer 21

yeah, your a and b are correct

Answer 22

But h, i got 12.05, did you really get h=a?

Answer 23

hold on a sec. my camera is taking forever to transfer...

Answer 24

take a look at this

Answer 25

bsinA = 12.06
that's what i got

Answer 26

yah but a=13.3 lol

Answer 27

hmmm...now i'm confused...

Answer 28

I don't get it...the answer should b two solution

Answer 29

I'd ask your teacher.

Answer 30

Yeah, I'm getting two solutions as well. I'm gonna stick with it.