Question

In the triangle, b = _____. If necessary, round your answer to two decimal places.

Answer 1

@TranceNova

Answer 2

@hartnn

Answer 3

can u find angle B ?

Answer 4

sum of angles = 180 so its 115.7

Answer 5

now just use sine rule, u know that rule?

Answer 6

not really

Answer 7

\(\huge \frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}\)
in any triangle.

Answer 8

i have only one side though....so do i do the angle corresponding to the side i have to find the other ones and then what?

Answer 9

its just b ?

Answer 10

u know B
so u know sin B
you are already given a and A

Answer 11

\(\huge \frac{a}{\sin A}=\frac{b}{\sin B}\)

Answer 12

a= 22 , bdw

Answer 13

okay so 22/sin34.5 = b/sin115.7?

Answer 14

exactly.

Answer 15

so to get b by itself i would do 22/sin34.5 * sin115.7?

Answer 16

going good :)

Answer 17

i got 43.11

Answer 18

let me calculate and verify
wait.

Answer 19

i got 35
https://www.google.co.in/#hl=en&tbo=d&sclient=psy-ab&q=(22%2Fsin+34.5+degrees)+*+sin+115.7+degrees&oq=(22%2Fsin+34.5+degrees)+*+sin+115.7+degrees&gs_l=hp.3...6494.12174.3.12176.16.16.0.0.0.2.427.3888.0j4j7j3j1.15.0.les%3B..0.0...1c.1.2mspW5x0cgM&pbx=1&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&fp=3869f8a97ac452c5&bpcl=39650382&biw=1366&bih=643

Answer 20

i did it in calc and still got 43.105

Answer 21

is you calcy in degrees mode ?

Answer 22

yes i think you were in radians

Answer 23

or not"? 0.o-

Answer 24

the angles are in degrees, so u need to keep your calcy in degrees mode.

Answer 25

well i did it in google ..and got my answer too...

Answer 26

then it must be correct

Answer 27

sin34.5 = .566
sin115.7= .901
22/.566= 38.869
38.869 /.901= 43.14 <--- rounded wrong so alittle off

Answer 28

i don't know..

Answer 29

can you show me how you got 35?

Answer 30

its 35
i used my calculator also.

Answer 31

sin 34.5 = 0.566
sin 115.7 = 0.9011

Answer 32

22/ 0.566 * 0.9011 = 35