Given: angle EBA is congruent to angle CBD, measure of angle ABD is = to 90 degrees.

Prove: angle EBA is the complement of the angle ABC.

Write a proof....

I have no idea how to proceed...help!

Thank you!

1 answer

all the angles add up to 180.
Since angle ABD is 90, the other two must add up to 90.

So, they are complementary angles.