Question

The diagonal Ac of a quadrilateral abcd is 6 cm and the perpendicular, Bm from the vector B is 3 cm and Dn from D is 5 cm , dripped on the same diagonal find the area of the quadrilateral ABCD

Answer 1

Step-by-step explanation:

Area of quadrilateral ABCD=ar(△ABC)+ar(△ACD)

=(

2

1 ×AC×BM)+(21)×AC×DL)

= 21 ×AC(BM+DL)

= 21

×10(5+6)

=5×11cm

2

=55cm

2