Find the perimeter of sector whose area is 324cm² and radius is 27cm​

Question

Find the perimeter of sector whose area is 324cm² and radius is 27cm​

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Maria 4 weeks 2021-08-14T02:28:35+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-14T02:29:53+00:00

    Step-by-step explanation:

    Area of sector = 324 cm2

    rl / 2 = 324

    Multiply each side by 2.

    rl = 648

    Substitute 27 for r.

    27l = 648

    Divide each side by 27.

    l = 24 cm

    Perimeter of sector is

    = l + 2r

    = 24 + 2(27)

    = 24 + 54

    = 78 cm

    0
    2021-08-14T02:30:07+00:00

    Answer:

    Area of sector = 324 cm2

    rl/2 = 324 cm

    multiply each side by 2

    substitude 27 for r.

    271 = 686

    Divede each side by 27

    1 = 24 cm

    perimeter of sector is

    = 1 + 2 r

    = 24+2(27)

    = 24+54

    = 75 cm.

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