Q. 14 A54.6( 5 Votes )

In the adjoining figure, if O is centre of circle, the value of ∠POR isA. 20B. 40C. 60D. 80

In ΔORQ,

ROQ = 180 – 40 – 40

ROQ = 100°

In ΔPOQ,

POQ = 180 – 10 – 10

ROQ = 160°

POR = 160 – 100

POR = 60°

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Let us write in the following by understanding it.

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ii. The greatest chord of the circle is.

iii. The chord divides the circular region into two.

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West Bengal Board - Mathematics