Question

in the adjoining figure the sides BA and DC of a quadrilateral ABCD have been produced to E and F respectively.
prove that: a+b=x+y

hint: b° + angle A=180° , a° + angle C =180°
therefore a° + b° + angle A + angle C = 360°
but, x° + y° + angle A + angle C = 360° [angles of a quadrilateral]​

Answer 1

Answer:

in the figure is the by name is Pushpa and what is the relation ok I'm exported in the world in the world ABCD have been produced to E and F are presently for the a b a + b is equal to X + Y Hind by angle A + angle C is equal to 60 degree angle is equal to see is 180 degree + Y degree + angle A + angle C is equal to angle is the a b prove that a b is greater than a v is greater than X + Y ok