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April 19, 2014

April 19, 2014

Posted by **josh** on Sunday, December 13, 2009 at 7:13pm.

This is what I have, but it doesn't seem correct - can anyone help?

XY is congruent to XZ - Given

XB bisects angle XYZ - Perpendicular Bisector of Isosceles Triangle

YB is congruent to BZ - Don't know why

XB is congruent to XB - Reflexive Prop

XBY is congruent to XBZ - SSS Theorem

Angle Y is congruent to Angle Z - CPCTC

- geometry -
**Reiny**, Sunday, December 13, 2009 at 9:50pmYou want to use ASA, not SSS

I would write it this way

XY is congruent to XZ - Given

angle YXB = angle ZXB - given angle x is bisected

XB = XB -reflexise prop.

then triangle XYB is congruent to triangle XZB (ASA)

therefore angle Y = angle Z (properties of congruent triangles)

- geometry -
**Marissa**, Monday, December 14, 2009 at 9:37pmline RS=line UT and line RT= line US

prove triangle RST= triangle UTS

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