Answer
a) yes
b) no
c) no
d) no
Work Step by Step
a) The single hash marks on each segment tell us the segments are congruent.
b) Because the segments are unmarked, you cannot conclude they are congruent.
c) You cannot conclude that an unmarked angle is a right angle.
d) Because the segments are unmarked, you cannot conclude they are congruent; therefore you
cannot conclude the segment is bisected.
