Based on the congruence statement above, match the corresponding sides and angles.

column a
1.
≅ ∠s:
≅ ∠s
2.
≅ ∠t:
≅ ∠t
3.
≅ ∠u:
≅ ∠u
4.
≅ st:
≅ st
5.
≅ tu:
≅ tu
6.
≅ us:
≅ us
column b
a. dc
b. ∠d
c. de
d. ∠e
e. ∠c
f. ce

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.