Question

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Answer 1

Step-by-step explanation:

angle C =115° (given)

therefore,

angle D+ angle C =180° (Adjacent angle of

trapezium are

supplementary.)

angle D+ 115°=180°

angle D= 180-115

= 65°.

angle C = angle A

angle D = angle B

(reason:- opposite angle of trapezium are congruent).

therefore,

angle A = angle B = angle C = angle D.

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