Mathematics, 24.07.2019 03:00 depaze6652

How do you find the surface area of a cylinder

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Answer from: delaneyjane2035

Hey there!

The equation for the surface area of a cylinder would be circumference x height + 2B. The circumference is the perimeter of the circle. This is found by multiply the diameter by pi (3.14, though you should use the symbol π). The height is the height of the cylinder. The 2B is area of the 2 bases (the 2 circles on top and bottom of the cylinder).
An example of how to find the surface area of a cylinder is this: (given information) the radius of the circle is 5, and the height is 3. First, multiply the radius by 2 to find the diameter. This would be 10. Multiply 10 by pi. This would be 10π. Multiply the circumference of the circle by the height. 10π x 3=30π. Then, add the area of the 2 bases. The area of a circle is πr^2. Plug in 5 for the radius, or r. You get π5^2. This simplifies to 25π. Multiply by 2 because there’s 2 bases. You get 50π. Add. 30π+50π=80π. The answer to this problem is 80π units^2.

I hope this helps!

Answer from: Quest

step-by-step explanation:

a. since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since 2010 0 1 2 3 4 5

profits made in 1000's 39 84 111 120 111 84

we find that profit gradually increases form 2010 to 2013 upto 120, then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a. since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

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