I. Determine which postulate can be used to prove the triangles congruent. If it is not possible to prove them congruent, state not possible.
A) 
B)
C)
II.Given the figure ABCD below with segment DB perpendicular to segment DC and segment DB perpendicular to segment AB, indicate whether each statement is true, could be true, or appears to be false.
A) segment DC parallel to segment AB
B) angle 4 and angle 5 are a linear pair
C) segment AD congruent to segment BC
D) segment AD congruent to segment AD
E) triangle ABD congruent triangle CDB
F) triangle DCB is isosceles
G) angle 1 congruent angle 2
H) angle 2 congruent angle 3
III. Refer to triangle ABC and triangle DEF below.
A) Name one additional part of corresponding parts that need to be congruent in order to prove that triangle ABC is congruent to triangle DFE.
B) What postulate would you need to use to prove the triangles are congruent?
