Sara needs to cover the top and sides of the cylinder below. About how many square inches of paper will Sara need?
My answer: 1,005 in.^2 (wrong
Correct Answer: 352 in.^2
I don't understand can you please walk me through this?
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
Sure, I can help you! Let's break it down step by step.
To find the total surface area of a cylinder, we need to calculate the areas of the top and the sides separately.
Step 1: Finding the area of the top (or the base) of the cylinder.
The area of a circle can be calculated using the formula A = πr^2, where A is the area and r is the radius. Since the top of the cylinder is a circle, we need to find the radius first.
Step 2: Finding the radius.
Do you have any information about the cylinder's dimensions? Such as the height or the diameter?
Sure, I'd be happy to walk you through it step-by-step!
To determine how many square inches of paper Sara will need to cover the top and sides of the cylinder, we need to calculate the surface area of the cylinder.
Step 1: Identify the given measurements.
Unfortunately, you haven't provided any specific measurements for the cylinder, such as the radius or height. Without these measurements, it is not possible to calculate the exact surface area. However, I can provide you with a general formula that can be used to calculate the surface area of a cylinder.
Step 2: Understand the formula.
The formula to calculate the surface area of a cylinder is: (2πr × h) + (πr²), where r is the radius of the circular base of the cylinder and h is the height of the cylinder.
Step 3: Substitute the values.
Since no specific measurements are provided, we are unable to substitute values into the formula.
Based on this information, the correct answer cannot be determined without the specific measurements of the cylinder.
Certainly! To find the surface area of the cylinder, we need to consider the top and bottom circles as well as the curved side. The formula for the surface area of a cylinder is given by:
Surface area = 2πr^2 + 2πrh
Where r is the radius of the base of the cylinder and h is the height.
In this case, we need to cover only the top and sides, so we can disregard the bottom circle. Therefore, the formula becomes:
Surface area = πr^2 + 2πrh
Now, we'll need to know the radius (r) and height (h) of the given cylinder to calculate the surface area. Do you have those values?
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.
he radius 3 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
The answer 207