Find the coordinates of the vertices of figure after the given transformation. Reflection across x- axis and y axis:

Q(0, −1), D(−2, 2), V(2, 4), J(3, 0)

c

step-by-step explanation: easy math

b is the right answer

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees

4.28095238095 that is the answer