Question

Find the value of x to the nearest tenth
remember SOH CAH TOA. Make sure it in degree mode

Answer 1

which one should you use? sin, cos or tan?

Answer 2

im taking a guess tan ?

Answer 3

what sides have numbers next to them opp, adj or hyp?

Answer 4

hyp is always across from right angle
opp is accross from the angle x
adj is next to angle x (but not the hyp)

Answer 5

90

Answer 6

what side has the length of 10? opp, adj or hyp?

Answer 7

10 and 8

Answer 8

the side 10 is the hyp
the side 8 is the opp

once you identify the sides, you will know what ratio to use.
SOH, CAH, TAO
which one use hyp and opp?

Answer 9

ok who do u do that

Answer 10

how

Answer 11

SOH - sin is opp/hyp
CAH - Cos is adj/hyp
TAN - Tan is opp/adj

Answer 12

since this problem involve the opp and the hyp
you should use sin
Since you are finding an angle, use sin^-1

make sure you calculator is set to degrees (mode button)

type 2nd sin (8/10) press enter

Answer 13

I not have a caluator

Answer 14

you will need one for this type of problem

got a cell phone? with calc.
if so hold it side ways

Answer 15

ok now wat do I d

o

Answer 16

what are you using phone or calc

Answer 17

is this the answer
0.0279243606

Answer 18

nope

Answer 19

how did you get it

Answer 20

ok how about this

Answer 21

you would be using sin

plug this in \[\sin(x)=8/10\]
then do 8/10 (gives you .8)

then put .8 into your calculator and press \[\sin^{-1} \]

you should get 53.1 degrees

Answer 22

if you're using your phone (iPhone) just plug in .8 then press 2nd sin