Iam a 4 digit number. all my digits are factors of 8. the product of the first and last digits is the fourth multiple of 8. the second digits is 3 less than the last digit. if the first digit is the largest number, what number am i?

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.