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Let's do this question, Esquire sheet of paper is converted into a cylinder by rolling it along its

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side.

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What is the ratio of the base radius to the side of the square?

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Now pause the video, give it a try, and then let's do it together.

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All right.

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We are back.

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Let's do it together.

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What we're here to mention that is quite a sheet of paper is rolled into a cylinder.

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Right.

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Therefore, you can see that this length, which is a will be equal to this length over here, which

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is equal to two by our right, therefore is equal to beer.

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Now we need to find the ratio of the radius to the side of the square.

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Right.

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That's our base.

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And you can find that our baby will be equal to one divided by two PI.

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And that is your answer.