Question

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A soup company packages its soup in cans shaped like right circular cyclinders. A diagram for the net of the cylinder is shown below
( pic inserted in comments)

Which is closest to the surface area of the cyclinder??
• 38 in
• 61 in
• 113 in
• 160 in

And also if you have any other answers to the test I really need them please help all is appreciated

Answer 1

You can find the area of the rectangle and the area of the two circles. You could then add them together.

To find the side length of the rectangle, find the circumference of one of the circles:

1.5*2*pi = 3pi

Now you can find the area of the rectangle: 5*3pi = 15pi.

The area of one of the circles is (1.5^2)pi = 2.25pi

The area of two of them is 5.5pi.

Adding everything together is 15pi + 5.5pi = 20.5pi

This is about 64.4026494.

Answer 2

The closest to the surface area of the cylinder is 61 in.

hope this helps