Find the volume of the cone and the curved surface area of the cone

Plz me plz i will give a brain just plz

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

Acircle has a circumference of 28.36 units what is the diameter of the circle