This figure represents a step in a compass and straightedge construction identify the construction

a perpendicular bisector

a congruent line segment

a congruent angle

an angle bisector

answer:

a perpendicular bisector

step-by-step explanation:

the answer is a perpendicular bisector .

steps of construction :

1.place the compass at one end of line segment.

2.adjust the compass to slightly longer than half the line segment length.

3.draw arcs above and below the line segment  

4.keeping the same compass width, draw arcs from other end of line.

5.place ruler where the arcs cross, and draw the line segment.

these steps verify the given image

hence it is a perpendicular bisector .

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.