Unit l2 trigonometry homework 6 law of cosines
Does anyone know the answer please help!​

Step-by-step explanation:

The law of cosine states that:

, where C is the side opposite of angle theta, and A and B are the adjacent sides of the angle.

In this case, A is equal to 21, and B is equal to 30 (or it could also be the other way around). That means that:

(to nearest 6 digits)

102.61

Step-by-step explanation:

assuming that QS is the hypothesis we us the fromula like this:

which gives us 8.7711511417 or we can round to 8.77

assuming that QS is the adjacent  we use:

which gives us 102.609108595 or rounded to 102.61

looking at both answers we can see that 102.61 would be the correct answer.

it could 14.28 but if its not that one then it has to be the 17 one. hope this ! : )

step-by-step explanation: