Answer:
x=50°
use the sine rule to find the missing angle "x"
First, find the length of the hypotenuse using the Pythagorean theorem: a^2+b^2=c^2
25 + 144 = c^2
= c^2
13 = c
Now, find each of the values! Sin = opposite/hypotenuse; Cos = Adjacent/hypotenuse; Tan = Opposite/Adjacent.
1. A
2. A
3. C
4. B
The answer would be C) Set 1 and Set 3. This is because both numbers in the set have to be negative for the statements to be true.