7) Susan needs to find the area of the bottom of a rectangular prism. The length of the bottom
measures 23 inches and the width of the bottom
measures 11 inches. The area of a rectangle is the
product of it's length, 1, and its width, w.
A = lw
Find the area of the bottom of the rectangular
prism.

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.