Answer:
b
Step-by-step explanation:
Hyp²=ADJ²+OPP²
28²=17²+X²
784=289+x²
x²=784-289
x²=495
x=22
here is your answer 22
idk sorry :(((((((((((((((((((((((((((((((((((((((((((
The value of a is 101°, b is 79°, c is 83° and d is 97°
-22