Question

3. In the figure, chord MN and chord RS
intersect at point D.
(1) If RD = 15, DS = 4,
MD = 8, find DN.
(2) If RS = 18, MD=9,
DN=8, find DS.​

Answer 1

Answer:

1 . chord MN and Chord RS intersect at point D

DM× DN =RD × DS theorem of internal division of chords

8× DN =15×4

DN = 15×4/8

DN = 7.5

Answer 2

Answer:

solution

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