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geometry

posted by on .

This is for SAT prep :(
Semicircular arcs AB,AC,BD,CD divide the circle above into regions.

The points show along the diameter AD divide it into 6 equal parts. If AD=6, what is the total area of the shaded regions?
a.4pi
b.5pi
c.6pi
d.12pi
e.24pi

Here is a picture:
i54 . tinypic . com/25tiwib. jpg

remove the spaces

Thanks!

  • geometry - ,

    6pi

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