Question

http://prntscr.com/s3on33

Answer 1

@TheSmartOne

I'm thinking im supposed to use sin?

Answer 2

You have the opposite side and the adjacent side

Are you sure?

Answer 3

So if you remember SOH CAH TOA, you can figure out which trig function to use. Let's identify a few things here. O is opposite. It simply means that the side length farthest from the angle is taken into account, in which in this case is side AB. A is adjacent. It simply refers to the side length that is right next to the angle, but is NOT the hypotenuse of the triangle. Speaking of the hypotenuse, that would be your H. Hypotenuse refers to the longest side of the triangle. If we were to look at sin, our equation would look like
\[\sin(35) = 5/H\] where H is the hypotenuse. Now think about this. Is this the side you really want, or are you looking for side BC?

Answer 4

I am looking for a

Answer 5

So tan? @TheSmartOne

Answer 6

tan(35)=5/a ?

Answer 7

Which would be 7.1

Answer 8

Yes

Also side BC is the formal way, but 'a' is what the question just called that side lol
\[\overline{BC} = a\]

Answer 9

Yes, good job

Answer 10

Got it but for the answer choices, there is 7.1 and 7...im not sure because the answer is originally 7.14 but rounded it to 7.1 so not 7 correct?

Answer 11

Yes, 7.1 would be the closests

Answer 12

Okay

Answer 13

closest*

also have you completely understood which side is adjacent and which side would be opposite?

Because once you know which sides you have, then you can use soh cah toa to figure out which trig function you need to use

Answer 14

Doesnt it depend on the angle

Answer 15

What he means is in respect to the angle yes. Remember what I said on your earlier post?

Answer 16

I had to sink in a lot if information but yes I understood so far everything you guys told me lol

Answer 17

Thats good. Keep it up!

Answer 18

Thank youu