Question

12. In the given parallelogram ABCD, find the values of a, b, c
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Answer 1

Answer:

a=30

c=110

b=110

Step-by-step explanation:

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Answer 2

Answer:

angle a = 70°

angle b = 110°

angle c = 110°

Step-by-step explanation:

Since ABCD is a parallelogram

angle C = angle A

angle D = angle B

Therefore

angle a = 30° + 40° = 70°

angle b + angle a = 180°

angle b = 180° - 70°

angle b = 110°

angle c = angle b

angle c = 110°