# Measurment

Sara needs to cover the top and sides of the cylinder below. About how many square inches of paper will Sara need?

I don't understand can you please walk me through this?

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1. Can you tell me the measurements of the cylinder?

I can tell you how to do this though.
To find the area of the two circles, use the formula a= 3.14r^2 then multiply it by two. then find the circumference using the formula c=2*3.14r. next multiply the circumference by the height of the cylinder to get the area of the sides. add the area of the side by the area of the two circles to get the area.

Hope this helps,

Anonymous

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2. To answer this question, you'll need to find the surface area of the top of the container (which is a circle), along with the surface area of the side of the container.Note that the diameter of the container is given and is 6 inches; therefore, the radius is ... what? Note that the height of the container is 8 inches.
you use that radius (3 inches) to calculate the area of the top of the container

L = 2πrh
Look up "area of a circle" or just "circle area." Still need to calculate the area of the top of the container.

L = 2πrh looks good. Mind defining L in words? Mind substituting r and h to calculate L?L means lateral surface are. i am not sure what you mean by substituting r and h

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posted by Elena

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