The radius and height of a cylinder are ...

The radius and height of a cylinder are in the ratio 4: 7 and its volume is `2816 cm^3`. Find its radius. (Take `pi=22/7`)
एक बेलन की त्रिज्या और ऊँचाई का अनुपात 4 : 7 है और इसका आयतन `2816 cm^3` है। इसकी त्रिज्या ज्ञात कीजिए। ( `pi=22/7` लें)

8 cm

6 cm

7 cm

5 cm

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