# Intersecting Lines and Triangles

Geometry Level 2

Lines $$l_1$$ and $$l_2$$ intersect at $$O$$. $$A$$ and $$C$$ are points on $$l_1$$ such that $$OA = 11, OC = 9$$. $$B$$ and $$D$$ are points on $$l_2$$ such that $$OB = 3, OD = 22$$. What is the ratio $$\frac{ [OCD] } { [OAB] }$$?

Details and assumptions

$$[PQRS]$$ denotes the area of figure $$PQRS$$.

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