1 Warm-Up--Nov. 18, 19, 2009 2x + 3 5 3x - 1 1. 2. 2x - 3 3x - 9 x + 3 x y 62 3. 30 x 45 y 62 4.
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Corresponding sides: Corresponding angles:
K
M
L P
R
Q
• Triangles are congruent if all pairs of corresponding angles are congruent and all pairs of corresponding sides are congruent.
Corresponding Parts
Congruency Statement: <K ≅ <P
4
If ABC RST, name the corresponding parts.≅EX. 1
HINT: (The order of the letters in the names show which parts correspond.)
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Warm-Up--Nov. 20, 23, 2009
2. Name the four postulates for determining if two triangles are congruent.
1.
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http://regentsprep.org/Regents/mathb/1b/Reccontri.htm
http://www.quia.com/jq/13641.html
http://education.yahoo.com/homework_help/math_help/problem_list?id=minigeogt_4_1
http://www.glencoe.com/sec/math/studytools/cgibin/msgQuiz.php4?isbn=0078296374&chapter=4&lesson=4&quizType=1&headerFile=4&state=na
http://www.glencoe.com/sec/math/studytools/cgibin/msgQuiz.php4?isbn=0078296374&chapter=4&lesson=5&quizType=1&headerFile=4&state=na
http://www.glencoe.com/sec/math/studytools/cgibin/msgQuiz.php4?isbn=0078296374&chapter=4&lesson=2&quizType=1&headerFile=4&state=na
http://www.glencoe.com/sec/math/studytools/cgibin/msgQuiz.php4?isbn=0078296374&chapter=4&lesson=1&quizType=1&headerFile=4&state=na