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In a circle of radius 28 cm, an arc subtends an angle of 45° at the centre, then find the length of the

arc (in cm).​

By Adalynn

In a circle of radius 28 cm, an arc subtends an angle of 45° at the centre, then find the length of the

arc (in cm).​

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Adalynn

Which of the following are not Linear equations. State reason i ) 5 + 4 x = y + 3 ii) x² + x + 1 = 0​

the first three terms in the expansion of √x+2 in ascending power of (x-2)​

1 thought on “In a circle of radius 28 cm, an arc subtends an angle of 45° at the centre, then find the length of the <br /><br />arc (in cm).​”

  1. Sector (OAPBO) of a circle is given whose
    radius(r)=28cm
    and central angle (θ)=45
    ∘

    ∴ Area of sector (A)=
    360
    ∘

    πr
    2
    θ
    ​

    =
    7
    22
    ​
    ×
    360
    ∘

    28×28×45
    ∘

    ​

    ⇒ Area of sector =308cm
    2
    is the required area.
    solution

    Reply

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