Question 173265
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    Statement                                      Reason
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1.  Angle ASC is right angle                       Definition of Altitude (given) 


2.  Angle ATC is right angle                       Definition of Altitude (given)


3.  Angle ATC = Angle ASC                          Right Angle Theorem


4.  CS = AT                                        Given


5.  AC = AC                                        Reflexive Property of Congruence


6.  triangle ASC = triangle ATC                    SAS Postulate


7.  AS = CT                                        CPCTC


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Notes: 


# 1 Remember, an altitude is a segment that runs from one vertex to the opposite side (and forms a 90 degree angle with the opposite side).


# 2 The Right Angle Theorem states that all right angles are congruent.


# 3 CPCTC = Corresponding parts of congruent triangles are congruent.