Question

if ABCD is a parallelogram then the ratio of the areas of parallelogram ABCD and triangle ABC is​

Answer 1

Answer:

BC is a diagonal of ABCD

diagonal of a parallelogram divides parallelogram into 2 congruent triangles

my above information we can say ar( ABC) = 1/2 Ar(ABCD)

therefore ratio of triangle to parallelogram is

1:2