Question

PLZ SOLVE THIS ... VERY URGENT IF THE QUESTION IS NOT CLEAR ASK FOR MORE DETAILS.

Answer 1

----------------HEY DEAR--------------------

HERE IS YOUR ANSWER................

WE KNOW ,

WHENEVER A DIAMETER MAKE ANGLE IN THE SEMI CIRCLE THEN IT S 90 DEGREE

SO IN THIS AD IS DIAMETER AS O IS CENTRE

SO ,

angle  ACD = 90 DEGREE

 ANGLE ACB = ANGLE BCD - 90 DEGREE

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HOPE IT HELPS YOU..

THANKS..

Answer 2

If angle bcd =90 than angle bac= 90 ( oc is a diameter )

I hope these W ill helps u