Answer:
B: 6 * (Sin 35), C: 6 * (Cos 55)
Explanation:
First, it would be helpful to know where the 35 comes from.
This is the measure of angle A, which can be found using the equation 180 - (90 + 55) = 35.
The Sine ratio is opposite / hypotenuse, and the Cosine ratio is adjacent / hypotenuse.
For answer B, we first have Sin (35) = x / 6
Solving for x would require us to use 6 * (Sin 35).
For answer C, we first have Cos (55) = x / 6
Solving for x would require us to use 6 * Cos (55).