Plzz I need help now

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.