Quadrilateral GRAM has vertices G 2 3 R 7 10 A 9 4 and M 4 3 Prove that GRAM is a parallelogram Quadrilateral GRAM is a parallelogram because GR MA and RA MG O Quadrilateral GRAM is a parallelogram because RGM GMA and ZRAM ZGRA Quadrilateral GRAM is a parallelogram because GR RA and MA MG O Quadrilateral GRAM is a parallelogram because MGGR and RA MA