Find the area of a circular ring whose outer and inner radius are 5 cm and 4 cm respectively. ( Take π= 3.14)

Question

Find the area of a circular ring whose outer and inner radius are 5 cm and 4 cm respectively. ( Take π= 3.14)

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Audrey 1 month 2021-09-22T00:32:16+00:00 1 Answer 0 views 0

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    2021-09-22T00:33:48+00:00

    Here’s your answer

    diameter of inner circle = 4cm

    Radius = 2cm

    diameter of outer circle = 5cm

    Radius = 2.5cm

    Area of inner circle = 3.14 × 2 × 2 = 12.56cm^2

    Area of outer circle = 3.14 × 2.5 × 2.5 = 19.625cm^2

    Therefore, area of the circular ring = area of outer circle – area of inner circle = 7.065cm^2

    Hope it helped

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