Question

find the area of the quadrilateral whose two heads are 4 cm and 5 cm respectively and one of the diagonal is 7.9 CM

Answer 1

ar(ABD)=1/2*7.9*4=15.8

ar(BCD)=1/2*7.9*5=19.75

ar(ABCD)=15.8+19.75=35.55