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Sector area and radius given: length of the arc

The same question, asked 2 times: 17 Jul 2023 S4*, 21 Jul 2023 S3. Every wording below, oldest first.

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  1. Question 1

    17 Jul 2023 S4

    71
    The area of the sector of a circle of radius 12 cm is 32π cm232\pi\ \text{cm}^2. Find the length of the corresponding arc of the sector.

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  2. Question 2

    21 Jul 2023 S3

    70
    The area of the sector of a circle of radius 28 cm is 112 cm2\text{cm}^2. Find the length of the corresponding arc of the sector.

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