finding the area of a sector in a circle?

A sector of a circle has a central angle of 60°. Find the area of the sector if the radius of the circle is 21 mi.

answer should be in mi2

2 Answers

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  • 4 years ago
    Favorite Answer

    The area of the entire circle is πr² = π·21² = 441π mi².

    A 60° sector represents 60°/360°, or 1/6 of the circle.

    Therefore, the area of the sector = 1/6 of 441π mi² = 147π/2 mi² ≈ 230.9 mi²

  • Anonymous
    4 years ago

    Area = pi r squared 60/360

    = 22/7 x 21 x 21 x 1/6 = 231 mi sq

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