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Question
The perimeter of a sector of circle with radius 5.7 m is 27.2 m. The length of the arc of sector (in m) is _______.
The perimeter of a sector of circle with radius 5.7 m is 27.2 m. The length of the arc of sector (in m) is _______.
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Solution
The correct option is D 15.8
Perimeter of sector = 2r + Length of the arc of sector
From the given data,
Length of arc of sector = 27.2 - 2 × 5.7
Length of arc of sector = 27.2 - 11.4 = 15.8 m.
15.8
Perimeter of sector = 2r + Length of the arc of sector
From the given data,
Length of arc of sector = 27.2 - 2 × 5.7
Length of arc of sector = 27.2 - 11.4 = 15.8 m.
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