Which of these needs to be completed first in order to construct a circle that
circumscribes a triangle?
A. the perpendicular bisectors of any two sides of the triangle
B. the lines perpendicular to any two sides of the triangle
C. the altitudes of any two sides of the triangle
D. the medians of any two sides of the triangle

i think it is c hope that

i want the details r

a reflection across line m

step-by-step explanation:

the first transformation is a 90 degree rotation counterclockwise around the point g. this gets to image gh'j'k'. when the image gh'j'k' is reflected over the line  m the result is g'h"j"k". the final transformation is a reflection over the line  m.

5 i think  

hope this !