D. All parallelograms are regular po
2. This diagram is a straightedge and compass construction
of a square BACD (not all markings are shown). The
construction followed these steps:
15
through A
the dre
dog 161
Tropylog
A
D
zzola
B
a. Start with two marked points A and B
b. Use a straightedge to construct line AB
ady for
pre?
c. Use a previous construction to construct a line perpendicular to AB passing
W
fectly outside
d. Use a previous construction to construct a line perpendicular to AB passing
reas of these 2 squares
through B
e. Use a compass to construct a circle centered at A passing through B
f. Label an intersection point of that circle and the line from step 3 as C
g. Use a previous construction to construct a line parallel to AB passing through C
h. Label the intersection of that line and the line from step 4 as D
i. Use a straightedge to construct the segments AC, CD, and DB
Explain why you need to construct a circle in step 5.