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ABCD is a cyclic quadrilateral and PQ is...

ABCD is a cyclic quadrilateral and PQ is a tangent to the circle at C. If BD is a diameter, measure of (i) LDBC (ii) LBCP (iii) LBDC (iv) LADB

Text Solution

Verified by Experts

`/_DAB = 90^@`
in `/_ ABD`
`/_A + /_B+ /_D= 180^@`
`90^@ + 60^@ + /_D=180^@`
`/_ADB= 180^@-150^@= 30^@`
`/_ADB= 30^@`
`/_BDC= /_DCQ`
`/_ DBC= 40^@`
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