Question

Using the figure below, find the ratio of each of the following terms:
Tan F, Sin D, Tan D

Answer 1

what you did?

Answer 2

which is your doubt

Answer 3

@jpsmarinho I don't understand what you're asking.

Answer 4

what is your doubt in this problem?

Answer 5

sorry my english ^^

Answer 6

??

Answer 7

oh, i'm just not sure how to do it.

Answer 8

ah right. tan of anyone angle is equals to opposite side divided by adjacent side

in this case, is tangent of a angle in vertex F. that equals to 5/12 , right?

Answer 9

in the case of sin (sine) is opposite side divided by hypothenuse

Answer 10

5/13

Answer 11

and cos (cosine) is adjacent side divided by hypothenuse

12/13

Answer 12

ohh okay. thank you @jpsmarinho!

Answer 13

you really understand?

Answer 14

yes. it's just gonna take some time to remember the rules of which is divided by what.

Answer 15

hypothenuse is the name of the side that is opposite to the right angle (90 degrees)

Answer 16

which is 13 right?

Answer 17

yes!

You already have heard about mnemonics?

Answer 18

no

Answer 19

can you help me with another question? @jpsmarinho

Answer 20

It's a way to remember something.

http://www.ict4us.com/r.kuijt/en_sohcahtoa.htm

Answer 21

oh yeah, i know about that. thanks

Answer 22

in brazil, I use it a lot of times! to physics it's incredible!

Answer 23

sure! ask me! ^^

Answer 24

Using rectangle ABCD, find the value of y to the nearest tenth.

Answer 25

what is nearest tenth?

Answer 26

oh don't worry about that part.

Answer 27

ah I already see what it is ^^

Answer 28

in this case, you only want to know the y value. So use cosine

Answer 29

you can abstract only a part of the rectangle to a triangle