Let Δ ABC and Δ ABD be on the same base AB and between the same parallels AB and CD. Then the relation between areas of Δ ABC and Δ ABD will be
Δ ABD = 1/3 Δ ABC
Δ ABD = 1/2 Δ ABC
Δ ABC = 1/2 Δ ABD
Δ ABC = 1/3 Δ ABD
D.
Δ ABC = 1/3 Δ ABD
As we all know that, Triangles on the same base and between same parallels are always equal in area
∴ Δ ABC = Δ ABD