Answer:
11. A. 
12. D. 
Step-by-step explanation:
11: Sin is just the side opposite of the angle divided by the hypotenuse of the triangle
Opposite of A = 36
Hypotenuse of the triangle = 39
36/39 = 
12. Tan is the side opposite of the angle divided by the side adjacent to the angle
Opposite of C = 35
Adjacent to C = 12
35/12 = 
Hope this helps!
It would be b)-6561 not the others
I would believe it to be 22
A because 2x9 equals 18 and 9x2 equals 18
The correct answer is D. Since the polygons are /similar/ and not /congruent/, C is not necessarily true.
Hope this helps.