Q. 23
Statements a and A. Both a and b are true
B. a is true and b is false
C. a is false and b is true
D. both a and b are false
Answer :
When two lines intersect then the vertically opposite angles are always equal.
When a transversal intersects, two other lines, then the sum of two interior angles on the same side of the transversal is 180° if and only if the two lines are parallel. The pair of angles are known as co-interior angles.
So both a is true and b is false.
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