In parallelogram A B C D, angles B and D are acute while angles A and C are obtuse. The perpendicular from C to A B and the perpendicular from A to B C intersect at a point P inside the parallelogram. If P B=700 while P D=821, what is A C?
In parallelogram A B C D, angles B and D are acute while angles A and C are obtuse. The perpendicular from C to A B and the perpendicular from A to B C intersect at a point P inside the parallelogram. If P B=700 while P D=821, what is A C?