Q. 1075.0( 1 Vote )
State whether the
Answer :
TRUE
Let ABCD be a parallelogram, with 
A = α and 
B = β.
We have to Prove that 
C = α and 
D = β.
α + β = 180° (co-interior angles, AD || BC),
C = α (co-interior angles, AB || DC)
D = β (co-interior angles, AB || DC).
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