Proof: Parallel Lines 4     
line UTS line PQR
3 = 45
1 = 50
6 = 135
2 = 40
1. 
1. 
PQS = 1 + 2 + 3
6 = 135
1 = 50
PQS = 135
line UTS line PQR
135 = 50 + 2 + 45; 135 = 95 + 2
40 = 2
PQS = 6
3 = 45



ProveIt! by Michael Ferraro <mferraro@balstaff.org>.
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