Geometry SAT problem

  • Thread starter athena810
  • Start date
  • #1
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Homework Statement


A right circular cone is drawn above, with 2 circles centered at A on its base as shown. AB is the height of the cone, the measure of <ABC is 60° and BC has a lenght of y. If BD bisects <ABC, which one of the following gives the area of the smaller circle in terms of y?

http://imgur.com/JgrevjM

Homework Equations



none

The Attempt at a Solution


Included in the picture

Could you explain what I did wrong, and how to get the correct answer? Thanks
 

Answers and Replies

  • #2
575
76
BD doesn't bisect AC.
 
  • #3
22
0
Doesn't bisecting cause the bisecting thing to bisect the line segment from where the angles end?
 
  • #4
Office_Shredder
Staff Emeritus
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322
It bisects the angle ABC, it does not cut the line AC in half (which seems to be what you are using)
 

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