Question

Using the figure below, find the ratio of each of the following terms:
cos F
tan F
sin D
tan D

Answer 1

Do you know SOHCAHTOA?

Answer 2

no

Answer 3

This is a way to memorize which ratio is each one of the trig functions sine, cosine, and tangent. This is what it means.

Answer 4

Sin = Opp/Hyp (SOH)
Cos = Adj/Hyp (CAH)
Tan = Opp/Adj (TOA)

Answer 5

Now look at your first example, cos F
For a cosine you need opposite over hypotenuse.
Look at angle F, which leg is the opposite leg to angle F? Which side is the hypotenuse?

Answer 6

@lana.831 Are you following this?

Answer 7

D? 15?

Answer 8

@mathstudent55 is that right?

Answer 9

What do you mean, D, 15? Is this a multiple choice question?

Answer 10

D is an angle. Also there is no side that measures 15, so I don't understand your answer.

Answer 11

In a right triangle, the hypotenuse is always the side opposite the right angle and it's always the longest side.

Answer 12

In a right triangle, the two sides that form the right angle are called legs.

Answer 13

@Mertsj no, that was to @mathstudent55 . the choices for cos F are: 5/12, 12/5, 12/13, 5/13.

Answer 14

okay so would the opposite leg to angle F is 5?

Answer 15

Correct. The leg opposite angle F is the one that measures 5.
The leg adjacent to angle F is the one that measures 12.