In DeltaABC angle bisector of angleA, an...

In `DeltaABC` angle bisector of `angleA, angleB angleC` meets cuts circumcircle at x, y, z respectively. If `angleA=50^(@), angleCzy=30^(@)` find `angleBYZ`.

A

`45^@`

B

`55^@`

C

`35^@`

D

`30^@`

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The correct Answer is:

C

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LUCENT PUBLICATION-CIRCLE AND ITS TANGENT LINES-EXERCISE 8B

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