Question

Please helpp..? (question in picture below)

Answer 1

3rd one..

s/q = cos55

Answer 2

q is the hypotenuse...so cos 55 = s/q and sin 55 = r/q

so q is either...

qcos 55 = s
q = s/cos 55

or qsin 55 = r
q = r/sin 55

which option has either of those two pbear? :DDD

Answer 3

if you remember cos= A/H, you know cos55 = s/q

multiply both sides by q,

q * cos55 = s

divide each side by cos55

q = s/cos55

is your answer. 3rd choice.