Calculating the Perimeter of a Tablet PC

Oct 13, 2025 by wbrum.org 69 views

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Introduction

In geometry, the perimeter of a shape is the total length of its boundary. For a rectangle, such as a tablet PC, the perimeter can be calculated by adding the lengths of all its sides. In this article, we will learn how to find the perimeter of a tablet PC given its length and width.

What is the Perimeter of a Rectangle?

The perimeter of a rectangle is calculated by adding the lengths of all its sides. Since a rectangle has two pairs of equal sides, we can calculate the perimeter by adding the lengths of the two pairs of sides and then multiplying the result by 2.

Formula for Perimeter of a Rectangle

The formula for the perimeter of a rectangle is:

P = 2(l + w)

Where:

P is the perimeter of the rectangle
l is the length of the rectangle
w is the width of the rectangle

Calculating the Perimeter of a Tablet PC

Given the length of the tablet PC is 241.2 mm and the width is 195.7 mm, we can calculate the perimeter using the formula above.

Convert the Length and Width to Centimeters

To convert the length and width from millimeters to centimeters, we divide each value by 10.

Length (l) = 241.2 mm / 10 = 24.12 cm
Width (w) = 195.7 mm / 10 = 19.57 cm

Calculate the Perimeter

Now that we have the length and width in centimeters, we can calculate the perimeter using the formula above.

P = 2(l + w) = 2(24.12 + 19.57) = 2(43.69) = 87.38 cm

Rounding the Answer to the Nearest cm

Since we are asked to round the answer to the nearest cm, we round 87.38 cm to 87 cm.

Conclusion

In this article, we learned how to find the perimeter of a tablet PC given its length and width. We used the formula P = 2(l + w) to calculate the perimeter and then rounded the answer to the nearest cm. The perimeter of the tablet PC is 87 cm.

Example Use Case

This formula can be used to calculate the perimeter of any rectangle, not just a tablet PC. For example, if you have a picture frame with a length of 30 cm and a width of 20 cm, you can use this formula to calculate its perimeter.

Tips and Variations

Make sure to convert the length and width to the same unit before calculating the perimeter.
If the length and width are given in different units, convert them to the same unit before calculating the perimeter.
This formula can be used to calculate the perimeter of any rectangle, not just a tablet PC.

Frequently Asked Questions

Q: What is the perimeter of a rectangle?
A: The perimeter of a rectangle is the total length of its boundary.
Q: How do I calculate the perimeter of a rectangle?
A: You can calculate the perimeter of a rectangle by adding the lengths of all its sides and then multiplying the result by 2.
Q: What is the formula for the perimeter of a rectangle?
A: The formula for the perimeter of a rectangle is P = 2(l + w), where P is the perimeter, l is the length, and w is the width.

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Q: What is the perimeter of a rectangle?

A: The perimeter of a rectangle is the total length of its boundary. It is the distance around the rectangle.

Q: How do I calculate the perimeter of a rectangle?

A: You can calculate the perimeter of a rectangle by adding the lengths of all its sides and then multiplying the result by 2. The formula for the perimeter of a rectangle is P = 2(l + w), where P is the perimeter, l is the length, and w is the width.

Q: What is the formula for the perimeter of a rectangle?

A: The formula for the perimeter of a rectangle is P = 2(l + w), where P is the perimeter, l is the length, and w is the width.

Q: Do I need to convert the length and width to the same unit before calculating the perimeter?

A: Yes, you need to convert the length and width to the same unit before calculating the perimeter. If the length and width are given in different units, convert them to the same unit before calculating the perimeter.

Q: Can I use this formula to calculate the perimeter of any shape?

A: No, this formula is specifically for rectangles. If you need to calculate the perimeter of a different shape, you will need to use a different formula.

Q: What if I have a rectangle with a length of 10 cm and a width of 5 cm, but the length is given in meters and the width is given in centimeters?

A: In this case, you will need to convert the length from meters to centimeters before calculating the perimeter. There are 100 centimeters in 1 meter, so the length in centimeters would be 10 x 100 = 1000 cm. Then you can use the formula P = 2(l + w) to calculate the perimeter.

Q: Can I use this formula to calculate the perimeter of a square?

A: Yes, you can use this formula to calculate the perimeter of a square. Since a square is a special type of rectangle where all sides are equal, you can use the formula P = 2(l + w) with l = w to calculate the perimeter of a square.

Q: What if I have a rectangle with a length of 20 cm and a width of 10 cm, but I want to round the answer to the nearest cm?

A: In this case, you would calculate the perimeter using the formula P = 2(l + w), which would give you a value of 60 cm. Since you want to round the answer to the nearest cm, you would round 60 cm to 60 cm.

Q: Can I use this formula to calculate the perimeter of a rectangle with a length of 50 mm and a width of 30 mm?

A: Yes, you can use this formula to calculate the perimeter of a rectangle with a length of 50 mm and a width of 30 mm. However, you will need to convert the length and width from millimeters to centimeters before calculating the perimeter. There are 10 millimeters in 1 centimeter, so the length in centimeters would be 50 / 10 = 5 cm and the width in centimeters would be 30 / 10 = 3 cm. Then you can use the formula P = 2(l + w) to calculate the perimeter.

Q: What if I have a rectangle with a length of 100 cm and a width of 50 cm, but I want to calculate the perimeter in meters?

A: In this case, you would calculate the perimeter using the formula P = 2(l + w), which would give you a value of 300 cm. Since you want to calculate the perimeter in meters, you would divide the perimeter by 100, which would give you a value of 3 meters.

Q: Can I use this formula to calculate the perimeter of a rectangle with a length of 200 mm and a width of 150 mm?

A: Yes, you can use this formula to calculate the perimeter of a rectangle with a length of 200 mm and a width of 150 mm. However, you will need to convert the length and width from millimeters to centimeters before calculating the perimeter. There are 10 millimeters in 1 centimeter, so the length in centimeters would be 200 / 10 = 20 cm and the width in centimeters would be 150 / 10 = 15 cm. Then you can use the formula P = 2(l + w) to calculate the perimeter.