Angle formed by an arc at the centre of a circle is ________ the angle formed by the same arc at it's circumference.

twice

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equal

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thrice

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half

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Solution

The correct option is A twice
Angle formed by an arc at the centre of a circle is twice the angle formed by the same arc at it's circumference as shown in the figure.

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Similar questions

60^{\circ}

In a circle of radius $21 c m$ , an arc subtends an angle of $60^{\circ}$ at the centre.

Find :

(i) the length of the arc

(ii) area of the sector formed by the arc.

60^{\circ}

60^{\circ}

21 c m

60^{\circ}

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