Bonjour j'ai besoin d'aide pour cet exercices de maths

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Which statement describes surface features called maria on the moon