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What is the lateral surface area of hollow cylinder?

in Science & Math
Reading Time: 3 mins read

Understanding the Lateral Surface Area of a Hollow Cylinder

Ah, the intriguing world of geometry! Let’s talk about cylindrical mysteries like they’re secrets waiting to be unveiled. Imagine a hollow cylinder as a magician’s hat, with its walls ready to reveal their hidden numbers. Curious about how much paint you’ll need for that soup can that lost its lid and bottom? Let’s dive into the lateral surface area of a hollow cylinder together!

Alright, picture this – you have a hollow cylinder boasting a lateral surface area of 4224 cm2. Quite the numbers game, isn’t it? But before we unravel more of these geometric treasures, let’s clarify what exactly constitutes the lateral and total surface areas.

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When we talk about the total surface area of a shape, we’re essentially summing up all its exterior faces. It’s like calculating how much wrapping paper you’d need for every side of a gift box. Now, when it comes to the lateral surface area, think of it as focusing solely on the sides without considering the top or bottom. Imagine preparing to paint just the walls but not bothering with the ceiling or floor.

Now, armed with this understanding, let’s decipher some formulas and diving deeper into these mathematical wonders!

Formulas to Calculate the Surface Area of Cylinders

To find the lateral surface area (LSA) of a hollow cylinder, you can use the formula: 2πh(R + r), where h is the height of the cylinder, R is the external radius, and r is the internal radius. This formula essentially accounts for painting just the sides of your hollow cylinder without including the top or bottom. It’s like giving your cylinder a stylish makeover without worrying about its hat or shoes!

Now, let’s delve into how to calculate different areas of a hollow cylinder to unravel more geometric mysteries. The cross-sectional area of a hollow cylinder can be determined by using the formula: π(R^2 – r^2). This calculation involves understanding the difference between the squares of internal and external radii, a bit like finding out how much doughnuts differ in size from their holes!

If you’re feeling adventurous and want to determine the total surface area (TSA) of a hollow cylinder which includes both its lateral and top/bottom surfaces painted, you can use this formula: TSA = 2πh(R + r) + 2π(R^2 – r^2). It’s like deciding to paint not only the walls but also taking care of giving some color to both ends so your cylinder looks fabulous from all angles.

Remember, geometry might seem like a tricky magic show at times with its formulas and shapes, but with these tools in hand, you’ll be able to unveil the hidden beauty and precise measurements behind every curved surface!

What is the lateral surface area of a hollow cylinder?

The lateral surface area of a hollow cylinder is 4224 cm2.

What is the formula to calculate the total surface area of a cylinder?

The formula to calculate the total surface area of a cylinder is: Total Surface Area = 2πr(h + r).

How many sides does a hollow cylinder have?

A hollow cylinder has one curved side and two round flat bases, making it a three-dimensional object with three sides.

Where is the lateral surface area formula used?

The lateral surface area formula is used to find the lateral area of any solid object, such as a hollow cylinder.

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