Find m angle h to the nearest degree. ..

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

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.

How do i find the missing angle measure in a polygon