CBSE Class 9 Answered
find the radius of a sphere whose area is 154 cm
Asked by manishgupta8980 | 15 Jul, 2022, 21:17: PM
Hint
Surface area of a Sphere
![4 πr squared space equals space 154
straight r squared space equals space fraction numerator 154 over denominator 4 straight pi end fraction
straight r squared space equals space 12.25
straight r space equals space 3.5](https://images.topperlearning.com/topper/tinymce/cache/cdf9e0812b0f22cc87465d0ca9a76be6.png)
So the radius = 3.5 cm
Answered by | 17 Jul, 2022, 01:39: AM
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