SAT Subject Test Mathematics Level 1

(Marvins-Underground-K-12) #1

= 22.


6 . D


As  is  so  often   true    when    circles are combined    with    other   figures,    the key
to solving this question is to draw in a radius:

All the radii   of  a   circle  are equal,  so  within  each    of  the two triangles   you
just created, the angles opposite the radii are equal:

Now that    you know    two angles  in  each    triangle,   you can figure  out the
third:
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