Arectangle's length is 4 feet more than its width. write a quadratic function
that expresses the rectangle's area in terms of its width.
a. a(w) = w^2 – 4w
b. a(w)= w^2+4w
c. a(w)=w+4
d. a(w) = lw

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.