Which shows how to determine the volume of the pyramid? A rectangular pyramid with a base of 8 centimeters by 12 centimeters and a height of 10 centimeters. V = one-third (12) (8) (10) V = one-half (12) (10) V = one-half (12) (8) (10) V = One-third (12) (10)

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.