The answer is 1,3,5,9,15,and ofcourse 45
Answer:

Step-by-step explanation:
From AAA, both triangles in this figure are similar. Therefore, we can set up the following proportion:
or
.
Cross-multiplying, we get:
.
Answer:
use cosine law
x^2 = 543^2 + 543^2 - 2(543)(543cos 128°
solve for x
Step-by-step explanation: