Question

. In a parallelogram ABCD, if angle a =45 , find the measure of all angles of parallelogram.

Answer 1

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Answer 2

Answer:

a=45

Step-by-step explanation:

therefore

a+b+c+d=360

since opposite angles are congruent

a=c=45

therefore

45+b+45+d=360

90+b+b=360(since opp angles are congruent)

2b=360-90

2b=270

b=270/2

b=135