Cho 2 hình bình hành ABCD và ABEF. Dựng các véctơ EH và FG bằng AD. CMR: ADHE, CBFG, DBEG là hình bình hành

Dimitri used a coupon that saved him 80 percent, or $6.87. he paid $34.35 for the items. dimitri used a coupon that saved him 80 percent, or $27.48. he paid $34.35 for the items. dimitri used a coupon that saved him 80 percent, or $6.87. the price of the items before the discount was $34.35.dimitri used a coupon that saved him 80 percent, or $27.48. the price of the items before the discount was $34.35.