Question

Solve the triangle.

B = 73, b = 15, c = 8

Answer 1

@ganeshie8

Answer 2

I am coming up with 38.933 for a, but that isn't an option.

Answer 3

@nincompoop

Answer 4

how did you solve for it?

Answer 5

I would like to see your work

Answer 6

I did \(\sf \dfrac{15}{73}=\dfrac{8}{a}\), then cross multiplied coming up with \(\sf\dfrac{584}{15a}\) then divided by 15, \(\sf\dfrac{38.933}{a}\) then multiplied by a, ending up with a = 38.933

Answer 7

hmmm I don't think you are suppose to do that

Answer 8

the lower caps and caps denote side and angle respectively
EXAMPLE

Answer 9

so the B might be 73 degrees instead of measurement of a side length

Answer 10

have you learned laws of cosine and sine?

Answer 11

I used by as an angle.

Answer 12

That is what they are "teaching" us now.

Answer 13

hmmm

Answer 14

do you ave a copy of ck.org free trigonometry book?

Answer 15

I was thinking to use this:
a/sin A = b/sin B = c/sin C

Answer 16

based on your solution, can you draw the triangle ?

Answer 17

oh okay, so you know about the law of sine and how about the law of cosine?

Answer 18

No, I haven't gotten to law of cosine yet

Answer 19

that is okay

Answer 20

^^ That's actually possible, you can approach it like that if you want

Answer 21

we can also use
sinA/a = sinB/b = sinC/c

Answer 22

Actually I'd use Tan

Answer 23

Sorry had to switch over to my phone

Answer 24

you don't have enough to use pythagorean theorem @tHe_FiZiCx99
you can derive by utilizing laws of cosine, and maybe, just maybe you will get somewhere an easy path to solving this

Answer 25

let us first solve for the angle C, @sleepyjess and use the laws of sine