Question

What is sin A for the triangle shown?

Answer 1

Do you know what the sine is in terms of the lengths of the hypotenuse, adjacent leg and opposite leg?

Answer 2

0.6
Remember SOH CAH TOA. Sin = opposite/adjacent

Answer 3

sin- opposite/hypotenuse

sin- 8/10=0.8 or 1.25

my answer 4/5

Answer 4

@Cookieyumm no you're wrong sin= opposite/ hypotenuse

Answer 5

now you want to find the sin inverse of 8/10 in order to find what angle A is

Answer 6

0.8

Answer 7

except it would be 6/10

Answer 8

Oops I meant hypotenuse (: Sorry my mind is boggled today.

Answer 9

because 6 is the opposite of angle A

Answer 10

yes

Answer 11

but i think the answer is \[\frac{ 4 }{ 5 }\]

Answer 12

wait, 3/5

Answer 13

so do \[\sin^{-1} (\frac{ 6 }{10 })\]

Answer 14

oh you just need to find sinA. not A. 6/10 is your answer

Answer 15

you can simplify if you want

Answer 16

3/5

Answer 17

yeah 3/5 is right

Answer 18

sorry about the confusion lol

Answer 19

haha okay :) i have a couple more questions that are similar if you can help? :)

Answer 20

sure i got time

Answer 21

what is cos of A for the triangle shown?

Answer 22

cos- adjacent/ hypotenuse

Answer 23

right so what is the adjacent and what is the hypotenuse?

Answer 24

15/17

Answer 25

no 15 is opposite A

Answer 26

8/17

Answer 27

right

Answer 28

So are you just confused as to what adjacent is?

Answer 29

no i just got the numbers mixed up i think

Answer 30

What is tan A for the triangle shown?

Answer 31

well what is tan?

Answer 32

tan- opposite/adjacent

and i got 5/12 but i have a feeling its 12/5 lol

Answer 33

ok you're getting opposite and adjacent confused

Answer 34

really? hmm

Answer 35

when they say opposite they mean the number opposite the angle. In this case the angle is A. so the number opposite A is twelve

Answer 36

http://www.mathsisfun.com/algebra/trig-finding-angle-right-triangle.html

this is where i learned

Answer 37

ohhhhh my bad! i just read my link and it says the same thing you just told me wow! blonde moment. haha sorry about that

Answer 38

for that picture that is the opposite. But it changes depending on what angle you're looking at

Answer 39

ok cool

Answer 40

im gonna open up a new question so i won't get into trouble :)

Answer 41

ok