Question

Можно и без рисунка.

Answer 1

S(ABD) = (1/2)*S(ABCD)
S(AED) = S(BED) --т.к. DE -- медиана))
S(AED) = (1/2)*S(ABD) = (1/4)*S(ABCD) --->
S(EBCD) = (3/4)*S(ABCD) = 3*184 / 4 = 3*46 = 138