In the given figure, ABCD is a rhombos a...

In the given figure, ABCD is a rhombos and BCE is an isosceles triangle, with BC = CE, `angleCBE = 84^@` and `angleADC = 78^@`. What is the value (in degree) of `angleDEC` ?

A

1) 20

B

2) 28

C

3) 33

D

4) 36

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The correct Answer is:

C

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