Math, asked by rupaktomar, 11 months ago

एक खोखले बेलन का सम्पूर्ण पृष्ठ क्षेत्रफल,जो दोनों ओर से खुला है, 4620 वर्ग सेमी है। इसके आधार का क्षेत्रफल 115.5 वर्ग सेमी और ऊँचाई 7 सेमी है। बेलन की मोटाई ज्ञात कीजिए

Answers

Answered by 123raahatpathak
0

Answer:

here is the question translated

The entire surface area of a hollow cylinder, which is open from both sides, is 4620 square cm. Its base area is 115.5 sq cm and height is 7 cm. Find the thickness of the cylinder

Step-by-step explanation:

area\: of \: cylinder  = 4620 {cm}^{2}  \\ area \: of \: cross \: section = 115.5  {cm}^{2} \\ height = 7

115.5 = \pi \times {x}^{2}  \\ 115.5 \div \pi =  {x}^{2}  \\ 36.7679185 =  {x }^{2}

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