Question

Exact measures

Answer 1

sin13=5/c, 5*sin13, c=5*sin13

Answer 2

hmmm to find 3rd side you should know one angle and one side sin = opposite over hyp right ?

Answer 3

but the hypotenuse isn't known in this case

Answer 4

right i want u to take a few sec and think about is it sin 13 = 5 /c correct ?
sin = opposite over hyp
and we are looking at angle B which is 13

Answer 5

given is a which is 5

Answer 6

no it's not correct! :) I was looking at angle A

Answer 7

so we can use tan77=b/5

Answer 8

well sin B = opposite over hyp but the opposite of angle B isn't given

Answer 9

but we can find out what angle b is.. it's 77 degrees

Answer 10

we don't konw what c equal to and we don't know what is B
so you can't use sin for angle B