Question

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Answer 1

Answer:

B=90

D=40

A+B=180 (angles on same side of transversal)

C+D=180 (angles on same side of transversal)

Answer 2

Answer:

40° AND 90°

Explanation:

Since,

ABCD is a trapezium,

We Know that,

Adjacent angles near the parallel lines in a trapezium are complementary.

Thus,

C+D=180°

140+D=180°

D=40°

and

A=90°.....(Given)

A+B=180°

90°+B=180°

B=90°

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