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|dw:1435093915953:dw|

is H the same as h?

yes

the adjacent side is the side touching the angle (that isn't the hyp)

12?

that is right

now you just put your opp/adj
and you have your tangent ratio

for angle h that is :)

or H

since H=h

do i do 5/12

yep

it says 0.4166666667

I would leave it as just 5/12

are you suppose to round it ?

oh 5/12 is the answer lol

no lol

yes we already found the tangent of angle h earlier
it look like you were trying to round the answer

Thank you!(: can u help me with one more?

maybe

:p

i thought u were telling me to divide the two lol

sorry got confused but the answer is 5/12

but anyways what is your other qustion

yeah i see that now thanks

is this another right triangle?

|dw:1435094633296:dw|

yes

|dw:1435094708365:dw|

i think

yes that is a right triangle
(it has a 90 deg angle there)

the words I want you to use are:
opposite
adjacent
hyp

|dw:1435094797116:dw|
what side is this in the picture?

opposite?

that side is actually touching the angle in question

adjacent?

yes!

|dw:1435094881006:dw|
now what about the side whose measurement is 9

ok so 3 adjacent and opposite 9 and hyp b?

the hyp is the side BC ( the hyp is the side always opposite the 90 deg angle)

but yes to your other questions

oh bc i ment

so we are given opp and adj measurements
so I suggest using the tangent ratio again

3/9?

|dw:1435094982296:dw|

opp is 9
and adj is 3
not the other way around

oh so 9/3

yes tan=opp/adj

do i divide?

now you want to solve for B

so take arctan( ) of both sides

\[\tan(B)=3 \implies B=\arctan(3)\]

how would i solve that on calculator?

my answer choices are 58, 18, 52, 72

well sometimes the arctan( ) can be done by pressing shift (or 2nd) and then the tan button

so put tan(3) then what?

no

arctan(3)

i dont have arctan on my calc

you should see arctan( ) above tan on your calculator

theres in above tan

like in maybe a different color

in?

what kind of calculator do you have?

yea the button says in

maybe I can find a picture of your calculator online and tell you how to use it

it says casio fx-115ES PLUS

it is below the Ln key that you call in

to access the tan^(-1) thing
you need to press shift

got it

i got 79.5

oh it was ln not in oops

you did 3
then arctan( ) and you got 79.5?

79.51672353

you should do something like this:
second
tan
3
or it might be the other way on yours
3
second
tan

http://www.wolframalpha.com/input/?i=arctan%283%29

it tan^-1 then 3

you should be getting 71.57 deg

weird.. nope i got that number above and i typed it in exactly that way..

so the answer is 72?

yea but it is important you figure out your calculator

you might have to use it on a test

well i typed it in right.

so when you typed it all in
it said this:
\\[\tan^{-1}(3)\]

no other things in it

yep

without /

lol
that is not suppose to be there

ok lol but yep thats what i typed

i did that too

well cookies!

yeah thats really weird

actually i think i got that one but need help with my last question

ok if you insist

Find the value of x to the nearest tenth.
6.0
8.0
10.9
13.3
|dw:1435096370432:dw|

and I did get a different answer for that previous one

well you are given the hyp measurement
so you can think about using either sin of cos

sin or cos*

let's look at the angle whose measurement is 53 deg

what is the side whose measurement is x called?
choices:
adjacent
opposite
hyp

cos i believe

you did what was it?

adjacent?

for the child one? opposite sorry

yes and yes

let's talk about one problem at a time

we will come back to the child one (because you know it might get confusing )

|dw:1435096741024:dw|
that one side is always the hyp no matter what angle we decide to look at

anyways opp/hyp you should think sin function

the only answers i have fot the child one is 55 degrees, 35 degrees, 51 degrees, and 39 degrees.

got*

\[\sin(53^o)=\frac{x}{10}\]

yes arctan(17/14) does give one of those answers

|dw:1435096879182:dw|

its 51 degrees i thought it was either that or 35 degrees and went with 35 oops thank u!

so for the other question do i type sin(53) in?

well you need to multiply both sides by 10 to get x by itself

and yes you can type in sin(53) but you will need to multiply that result by 10

so 7.39631095?

would it be 8.0?

that is almost kinda close to what I got
I have 7.986 blah blah

which is pretty darn close to 8
we got to figure out what is going on with your calculator

what does your calc say when you enter in just sin(53)

0.739631095

hmmm...

that is really weird
should be getting 0.7986355100

but the real answer that comes up on that site link u gave me is showing what u got

The answer is 8.0 then but i really dont know what my calc is doing

yeah the answer is 8

i have no double about that

and your mode is in deg?

just figured out your problem

I was able to duplicate your answer for sin(53)

not degrees

change the mode and you fixed your problemd

oh you left :p

if you want to change to degrees
Press
shift setup(Mode)
then choose 3 Deg

im here

ok i just changed my mode.

yay the answer is right on my calc now. thank you so much !