Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Let the height of the parallelogram be h and the height of COD be x
So the height of AOB will be h-x.
Opposite sides are equal
So bases if both the triangles is equal.
Ar(aob)+ar(cod)=1/2*(h-x)*base + 1/2 * x*base
=1/2*base[h-x+x]
=1/2*(base* h)
Base* height= 40
Area of both triangles is 1/2*40
That is 20