幾何學 證明題
~Grade 12 Geometry~
ABCD is a quadrilateral that is inscribed in a circle and that has an incircle. EF is a diameter of the circle with EF perpendicular to BD. BD intersects EF at M and AC at S. A and E lie on the smae side of BD. Prove that AS : SC = EM : MF
plz..... anyone that can solve this prove email to my add ASAP
nikky_10_18@hotmail.com
thx