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  1. ... 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...

    2 Answers · Science & Mathematics · 27/02/2017

  2. The area of a sector of circle of radius R swept...the area of the whole circle whose area is πR². Notice...ratio gives the above formula A = πR²/(2π/Θ) = ...

    5 Answers · Science & Mathematics · 18/02/2012

  3. Sector arc-length = 20 cm radius, r = 10 cm Area of the sector = pi(r^2)*20 / 2pi*r Area = 10*r = 10*10 = 100 sq.cm >==========< ANSWER

    1 Answers · Science & Mathematics · 03/08/2011

  4. (45/360) * pi * 6^2 = 4.5pi cm^2

    4 Answers · Science & Mathematics · 18/11/2012

  5. ... by two radii of a circle and the arc the two radii subtend. The arc of the circle is equal in ... each r,the are of sector is simply area of entire circle times x/360...

    2 Answers · Science & Mathematics · 19/05/2011

  6. i) Area of a sector of a circle is given...the circle and θ is the angle of the sector in radians. ii) In...deg = π radians] So A = (1/2)(9)(2π/3) = 3π sq m

    2 Answers · Science & Mathematics · 06/11/2012

  7. A hexagon is inscribed in a circle. => the side = r the area of hexagon = 6*(1/2 √3r/2 *r) = 3√3/2 r^2 => 6 equ. triangles the area ...

    1 Answers · Science & Mathematics · 16/10/2015

  8. ...the circumference. If it is a sector , then it is 2 X radius + length of the arc Radius = 8cm circumference...8 + 5.582 = 21.582 cm ANSWER Area of circle = 3.14 X 8 X 8...

    2 Answers · Science & Mathematics · 02/08/2012

  9. ... you the fraction of the semicircle that the sector takes up. Then multiply by... pi*(radius^2), since that's the area of the whole semicircle. That is, half of a circle's area . The other option...

    1 Answers · Science & Mathematics · 27/02/2017

  10. ...82d, and 56.25d. We subtract the areas of the three pie shaped sectors from the area of the triangle to get the answer.The area in the A circle is 16pi x(29.93/360) = 4.18 B is .82 and C ...

    1 Answers · Science & Mathematics · 27/09/2011

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