In how many ways can 8 books be choosen from a group of nine?
1 answer:
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Given:
In the circle P, ABCD is inscribed quadrilateral.
And, ∠DAB = 110°, ∠ABC = 72°
To find the value of ∠ADC.
Theorem:
A quadrilateral can be inscribed in a circle if and only if the opposite angles are supplementary [ sum of the opposite angles will be 180°]
According to the theorem,
Hence,
The value of ∠ADC is 108°.
Hence, Option b is the correct answer.