if area is 154 cm square then what is radius and diameter​

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if area is 154 cm square then what is radius and diameter​

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Ruby 2 weeks 2021-09-10T19:17:39+00:00 1 Answer 0 views 0

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    2021-09-10T19:19:07+00:00

    Answer

    area \: of \: circle \:  = \pi {r}^{2}

    \pi {r}^{2}  = 154

     \frac{22}{7}  \times  {r}^{2}  = 154

     {r}^{2}  = 154 \times  \frac{7}{22}

    22×7=154,cancel 154 by 22

     {r}^{2}  = 7 \times 7 = 49

    r =  \sqrt{49}  = 7

    HENCE,Radius is 7 cm and diameter =2r .i.e-14 cm

    Hope it helps you

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    Thankyou

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