किसी बेलन की त्रिज्या तथा ऊंचाई का अनुपात `5:7` तथा आयतन `550 cm^(3)` है। तिर्यक पृष्ठ क्षेत्रफल ज्ञात करें?A. 110B. 444C. 220D. 616

किसी बेलन की त्रिज्या तथा �

1.	किसी बेलन की त्रिज्या तथा ऊंचाई का अनुपात `5:7` तथा आयतन `550 cm^(3)` है। तिर्यक पृष्ठ क्षेत्रफल ज्ञात करें?A. 110B. 444C. 220D. 616
Answer» Correct Answer - C माना ऊंचाई तथा त्रिज्या `7x` and `5x` respectively `implies pir^(2)h=550` `pi(5x)^(2)xx7x=550` `22/7xx25x^(2)xx7x=550` `x^(3)=1` `x=1` `:.` Height `=7cm` Radius `=5cm` `implies` Curved surface area `=2pirh` `=2xx22/7xx5xx7=220cm^(2)`

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किसी बेलन की त्रिज्या तथा ऊंचाई का अनुपात `5:7` तथा आयतन `550 cm^(3)` है। तिर्यक पृष्ठ क्षेत्रफल ज्ञात करें?A. 110B. 444C. 220D. 616

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