What is the shape of the cross section taken perpendicular to the base of a cone?

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

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Find the area of an equilateral triangle with a side of 6 inches