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4.4 SAS and HL
Ways to prove triangles congruent:
1) Definition of congruent figures
2) SSS—Side Side Side
3) SAS
4) HL
5) Tba in 4.5
6) Tba in 4.5
SAS
Included angle: the angle formed by the two named sides.
Because rectangles have right angles and congruent opposite sides,
AD ≡ BC, <B ≡ <D, and CD ≡ AB.
Therefore
Hypotenuse: the long side of a right triangle.
Always opposite the right angle.
Legs: the sides of a right triangle that form the right angle.
Geometry
• Page 243(1-18, 25,26)
• Page 243(19-24, 31-36,42-48)
Sophomore Math
• Page 243(1-15)
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