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Radius of a sector of a circle is 7 cm. ...

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is
(1) `30^(@)` (2) `210^(@)` (3) three right angles.
Find the area of the sector in each case.

Text Solution

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The correct Answer is:
(1) Area of the sector is `12.83cm^(2)`, when measure of the arc is `30^(@)`. (2) Area of the sector id `89.83cm^(2)`, when measure of the arc is `210^(@)`. (3) Area of the sector is `115.5cm^(2)`, when measure of the arc is equal to right angles.
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