Question

Find the value of w if mAC = 84°.


A.

126°





B.

84°





C.

42°





D.

168°

Answer 1

What is mAC? Is that the angle or the arc length? If it's arc length, then I suppose you could use the calculus 2 formula for arclength:
\[\sqrt{\frac{ dx ^{2} }{dt }+\frac{ dy ^{2} }{dt }}\]

Answer 2

I got 42 as an answer? is that correct?

Answer 3

I don't know what the m stands for in mAC

Answer 4

@Wislar "m" means "measure"