Can you help me with equations

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

Which statement describes surface features called maria on the moon

We just started the introduction into circles and i have no idea how to do this.