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Topic: Geometry #24
Replies: 25   Last Post: Jun 20, 2013 6:32 PM

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 aschneider24 Posts: 5 Registered: 6/19/13
Re: Geometry #24
Posted: Jun 19, 2013 3:26 PM
 AA #24.JPG (20.7 K)

If you place the smaller triangle in the larger triangle,with <A mapping onto <D, you see that AB is half of DE and AC is half of DF. When midpoints of a triangle are joined, the segments are parallel. Therefore, <ACB and <DFE are congruent corresponding angles. This gives two triangles similar by using AA. Likewise, when a segment joins the midpoints of two sides of a triangle, it is half the third side. Therefore, all corresponding sides are in the ratio 1:2 and the triangles can be proven similar by SSS. **See attached file

Date Subject Author
6/19/13 JFish@csufsd.org
6/19/13 Jonathan Halabi
6/19/13 AAP
6/19/13 aschneider24
6/19/13 JFish@csufsd.org
6/19/13 Wendyc
6/20/13 CCSSIMath
6/19/13 JFish@csufsd.org
6/19/13 StGOLD2112@aol.com
6/19/13 Kathy
6/19/13 Nick B
6/19/13 MrTicket
6/20/13 Ellen Falk
6/20/13 aschneider24
6/20/13 JFish@csufsd.org
6/20/13 rricca@malverne.k12.ny.us
6/20/13 Tom Kenyon
6/20/13 slashlee
6/20/13 Randall, Rick
6/20/13 salmonccc
6/20/13 aschneider24
6/20/13 Don
6/20/13 StGOLD2112@aol.com
6/20/13 Westendorf, Neal
6/20/13 Betsy Harasym
6/20/13 Kevin Davis