Question

how to find x when...
sin30/x = sin90/720

Answer 1

i assume thats the law of sines

Answer 2

yup

Answer 3

multiply both sides by x/720

Answer 4

and then divide both sides by sin90

Answer 5

or simply reciprocate and multiply thru by sin30

Answer 6

so \[\sin 30 \times 720 = \sin 90 \times x\]

Answer 7

I plugged it into my calculator and crossed multiplied and got -795.7. hope that helps(:

Answer 8

so far yes

Answer 9

divide off sin90 to get x all alone

Answer 10

sin90=1 if we are talking in degrees

Answer 11

is it then sin0.5x720=X ?

Answer 12

nope;


sin(30) x 720
------------ = X
sin(90)

Answer 13

whats that sin0.5 about?

Answer 14

i did sin30/sin90

Answer 15

but with your equation, is the answer 360?

Answer 16

looks that way as long as we are taking in terms of degrees and not radians

Answer 17

ok, ya it would be degrees, thanks :)

Answer 18

yw