Question 1129592
GIVEN: < {{{RST}}} congruent < {{{WSU}}} 

PROVE: < {{{RSW}}} congruent < {{{TSU}}}


statement...........................................................reason

1. < {{{RST}}} congruent < {{{WSU}}} .............................given

2. {{{m}}} < {{{RST}}} = {{{m}}} < {{{WSU}}}...........................................def. of congruent angles

3. < {{{RST}}}=< {{{RSW}}} - < {{{TSW}}}................................angle subtraction postulate

and  < {{{WSU}}}= < {{{TSU}}} - < {{{TSW}}}...........................angle subtraction postulate

4. < {{{RSW}}} - < {{{TSW}}}= < {{{TSU}}} - < {{{TSW}}}...............substitution

5. < {{{RSW}}}= < {{{TSU}}}...........................................subtraction proposition

6. {{{m}}} < {{{RSW}}}= {{{m}}} < {{{TSU}}}...................................def. of congruent angles