Math, asked by pranavasaatwika1, 4 months ago

19. ABCD is a parallelogram. EF is a chord such
that angle BEF = 78°. Find angle ABC

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Answers

Answered by isalreadytaken

9

Answer:

78°

Step-by-step explanation:

AEFD is a cyclic quadrilateral so, ADE is 78°( exterior angle is equal to interior opposite angle in a cyclic quadrilateral)

ABCD is a parallelogram (given) so ABC=ADE=78°

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