What are the square roots of 144 over 256 ?
a.
minus 12 over 16 and 12 over 16
b.
minus 12 over 18 and 12 over 18
c.
minus 9 over 16 and 9 over 16
d.
minus 72 over 128 and 72 over 128

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.