Find the circumference of a circle whose area is 49πcm^2

Question

Find the circumference of a circle whose area is 49πcm^2

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Cherry 6 months 2021-08-01T23:24:21+00:00 1 Answers 5 views 0

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    2021-08-01T23:25:57+00:00

    Answer:

    14π

    Step-by-step explanation:

    → State the area formula

    π × r² = 49 π cm²

    → Solve by dividing both sides by π

    r² = 49

    → Square root both sides

    r = 7

    → Substitute into circumference formula

    2 × π × r ⇔ 2 × π × 7 ⇔ 14π

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