Question

complete the Activity

1) In trapezium ABCD ( adjoining figure) Side AB//side DC , diagonal AC and BD intersect in point O. If AB = 20, DC = 6, Ob = 15, then find the boxes to find OD .

solution: Side AB// Side DC
And seg BD is their transversal L DBA ~ L BDC
L OBA~ L ODC

In ∆ OBA and ∆ ODC

L OBA ~ L ODC

( vertically opposite angle)

∆OBA ~ ∆ 0DC

OB/ OD =


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Answer 1

Answer:

OA/OC

lines in equal proportion