Math, asked by rishabhkapale3197, 9 months ago

Plz answer first will be marked as brainliest

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Answered by Anonymous
3

Step-by-step explanation:

Angle A = Angle DCB = 30°

( Opposite angles are equal in parallelogram)

In triangle BDC,

Angle DBC + Angle BDC + Angle DCB = 180°

(Angle sum property of a Triangle)

=> Angle BDC + 90° + 30° = 180°

=> Angle BDC + 120° = 180°

=> Angle BDC = 180° - 120°

=> Angle BDC = 60°

Now, Angle BDC = Angle BEC = 60° (Opposite angles in a parallelogram are equal)

Therefore, Angle BEC = 60°

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