Which quadrilateral’s diagonals do not create a 90° angle at its intersection?

square

rhombus

kite

parallelogram

Find the difference (8ab+a+2) - (3ab+6)

What is the total area of the figure?

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.