Question

LAST QUESTION GUYS! PLEASE HELP.

(Picture below.)
17. What is sin C?
18. What is tan B?
19. What is cos B?
20. What is sin B?

Answer 1

sin x = opp/hyp
cos x = adj/hyp
tan x = opp/adj

Answer 2

Look at the first question, sin C.
For angle C, which side is the opposite side?

Answer 3

8.5?

Answer 4

So I do Sin (8.5) ?

Answer 5

No. Let's go one step at a time. 8.5 is the side opposite angle C. That is correct.

Answer 6

Which side is the hypotenuse?

Answer 7

A?

Answer 8

A is an angle. The hypotenuse is the side opposite the right angle.

Answer 9

The hypotenuse is the side that measures 16.5
For angle C, the opposite side is 8.5, and the adjacent side is 14.1

Answer 10

Now look above at what I wrote. The sin of an angle is the opposite side over the hypotenuse.
That means sin C = opp/hyp = 8.5/16.5

Answer 11

8.5/16.5=29.51 degrees?

Answer 12

sin C = 8.5/16.5 = 0.515

Answer 13

You are not being asked what the measure of angle C is. All you're being asked is what sin C is. sin C = 0.515

Answer 14

Now let's do the next quesion.
18. What is tan B?
Look up above, tan x = opp/adj
For angle B, the hypotenuse is still 16.5. The opposite side is 14.1, and the adjacent side is 8.5, so since tan x = opp/adj,
tan B = opp/adj = 14.1/8.5 = 1.659

Answer 15

C = 0.515
B = 1.659

Answer 16

How do I find cos B

Answer 17

No.
sin C = 0.515
tan B = 1.659
Next is 19. What is cos B?
Look up above. cos x = adj/hyp
For angle B, adjacent = 8.5, and hypotenuse = 16.5
so cos B = adj/hyp = 8.5/16.5 = 0.515

Answer 18

Thankkks.

Answer 19

Then finally there is 20. What is sin B?
sin x = opp/hyp
For angle B, the opposite side is 14.1. The hypotenuse is 16.5, so
sin B = opp/hyp = 14.1/16.5 = 0.855

Answer 20

You're welcome.

Answer 21

Thanks so much for all the help!