Question

PLEASE PLEASE PLEASE HELP!!
Can someone please help me with a STEP BY STEP of this problem ? I'll seriously appreciate it, and thank you so so so much in advance!!
DON'T ANSWER IF YOU'RE UNSURE!!! I need actual help, please don't just take my points. (: Thank you!

Answer 1

tan 18 = x/2

⇒ 0.3249 = x/2

⇒ x = 2 * 0.3249 =

⇒ x = 0.6498 ≈ 0.65

Hope it helps!

Answer 2

the dotted line is parallel to segment BC.  This means that angle ABC is also 18 degrees.
Given that we are looking for the opposite of angle ABC and are give the adjacent of angle ABC (2) we can use the tan function to calculate x
tan 18 = opposite/adjacent
tan 18 = x/2
2 tan 18 = x - multiply both sides by 2
x = 0.6948 - simplify