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Write the formula for the area of a segm...

Write the formula for the area of a segment in a circle a circle of radius `r` given that the sector angle is `theta` (in degrees).

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Write the formula for the area of a sector of angle theta (in degrees) of a circle of radius r .

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Knowledge Check

  • The area of segment of a circle of radius alpha subtending an angle of 2 alpha at the centre is :

    A
    `a^2(alpha+1/2sin 2 alpha)`
    B
    `1/2a^2 sin 2 alpha`
    C
    `a^2(alpha-1/2sin 2 alpha)`
    D
    `a^2alpha`

  • The area of segment of a circle of radius alpha subtending an angle of 2 alpha at the centre is :

    A
    `a^2(alpha+1/2sin 2 alpha)`
    B
    `1/2a^2 sin 2 alpha`
    C
    `a^2(alpha-1/2sin 2 alpha)`
    D
    `a^2alpha`

  • The area of a sector of angle theta^(@) of a circle with radius R is

    A
    `(2piRtheta)/180`
    B
    `(piR^(2)theta)/180`
    C
    `(2piRtheta)/360`
    D
    `(piR^(2)theta)/360`

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