Answer: They are similar but not congruent.
Step-by-step explanation: hope this help
I think not sure I think -2 but if I had the whole answer to your question I might know more
The HCF is the Highest Common Factor of a number in this case 54. This is the highest number times another number which = 54. The HCF for 54 is 18.
Answer:

Step-by-step explanation:
sine of A = 
opposite = 5
adjacent = 12
hypotenuse = 13