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In a circle of diameter 40 cm. The leng...

In a circle of diameter 40 cm. The length of a chord is 20 cm. Find the length of minor arc of the chord.

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Diameter of the circle =40 cm ∴ Radius (r) of the circle = `40/2 cm` ​
`=20 cm`
Let AB be a chord (length = `20 cm`) of the circle. In `△OAB, OA = OB` = Radius of circle = `20 cm`
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Knowledge Check

  • In a circle of diameter44 cm, the length of a chord is 22 cm. What is the length of minor arc of the chord ?

    A
    `(484)/(21)` cm
    B
    `(242)/(21)`cm
    C
    `(121)/(21)`cm
    D
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  • In a circle of diameter 44 cm, the length of chord is 22cm. What is the length of minor arc of the chord ?

    A
    `(484)/(21)`cm
    B
    `(242)/(21)`cm
    C
    `(121)/(21)`cm
    D
    `(44)/(7)`cm

  • Two parallel chords are drawn in a circle of diameter 30 cm. The length of one chord is 24 cm and the distance between the two chords is 21 cm. The length of the other chord is

    A
    10 cm
    B
    18 cm
    C
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