Proving #1. Refer to the figure below to answer the 4 missing statement/reason
of the two-column form.
SU DU and TUYU, prove that ST DY.
Statements
Reason
1. SU DU and TU YU 1.
2.
S
D
2. Vertical Angle Theorem
3.
3. ASTU ADYU
4. ST DY
4.
