Question

A square piece of paper of side 12cm is rolled to form a cylindrical.Find the curved surface area of the cylinder

Answer 1

$\bf\blue{\underline{\boxed{Question}}}$

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A square piece of paper of side 12cm is rolled to form a cylindrical.Find the curved surface area of the cylinder.

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$\bf\blue{\underline{\boxed{Given}}:-}$

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$\small\tt{Height\:of\:the\:cylinder\:=\:12\:cm}$

$\small\tt{circumference\:of\:a\:base\:circle\:}\\{\:\:\small\tt{\rightarrow\:2πr\:=\:12\:cm}}$

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$\bf\blue{\underline{\boxed{Solution}}}$

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$\small\tt{As\:we\:know}$

$\small\tt{curved\:surface\:area\:of\:a\:cylinder\:is\:}\\{\small\tt{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=\:2πr\times h}}$

$\small\tt{C.S.A\:=\:(2πr)\times h}$

$\small\tt{C.S.A\:=\:(12)\times 12}$

$\small\tt\red{\underline{\boxed{C.S.A\:=\:144\:sq\:cm}}}$

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$\bf\blue{\underline{\boxed{Hope\:It\: Help\:You}}}$

Answer 2

Step-by-step explanation:

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