How to hide apps on Samsung Galaxy J3 Pro
The feature allows you to hide apps that you want to keep from being seen by others.
The formulas for calculating the area of the circle and the circumference of the circle are most complete
In this article, I will introduce to you the formula for calculating the area of a circle and the circumference of the circle most completely and accurately. Stay tuned.
What is circle?
In terms of the plane, the circle is the area limited internally by a circle. Center, the radius of the circle is the center, the radius of the surrounding circle.
1. The formula for calculating the area of a circle
- Concept
Calculate the area of a circle is to calculate the area inside the circle.
The pink part is the area of the circle
- Recipe
The area of a circle is calculated by the formula: Square radius of circle multiplied by Pi .
The formula for calculating the area of a circle
Inside:
+ r : Radius of a circle
+ π : Constant Pi (π = 3.14)
- Meaning
The formula for the area of a circle helps you calculate the total surface area inside the circle.
2. The formula for calculating the circumference of the circle
- Concept
The circumference of a circle, also known as the length of a circle, is the boundary line separating the inside from the outside of the circle.
Circumference is the length of the circle
- Recipe
The circumference of the circle is calculated using the formula: Diameter multiplied by Pi or twice the radius multiplied by Pi .
Formula to calculate the circumference of a circle
In which :
+ r : Radius of a circle
+ d : Diameter of circle
+ π : Constant Pi (π = 3.14)
- Meaning
Because circles cannot be measured with a ruler, you can use the circumference of a circle to get the length of the circle.
3. How to calculate the area of a circular fan
- Concept
A circular fan shape is a part of a circle limited by two radii and an arc shielded by these two radii.
The blue part is the circular fan-shaped area
- Recipe
The area of a round fan is calculated by the formula:
The formula for calculating the area of a round fan
In which :
+ r : Radius of a circle
+ π : Constant Pi (π = 3.14)
+ l : The length of the arc
- Meaning
The fan-shaped area formula makes it easy to calculate the area of the part of the plane inside the circle.
See also :
>>> Synthesize a table of full, detailed and easy-to-understand trigonometric formulas
>>> The formula for calculating the area of a trapezoid, trapezoidal perimeter fully understandable
Above are the formulas to calculate the perimeter, the area of a circle and the circle fan. Thank you for watching and see you in the following articles.
Measure heart rate on Samsung Galaxy S7
Heart rate monitor on Samsung Galaxy S7 helps you to measure your current heart rate at all times.
Enable Multi Wallpaper on Samsung Galaxy S8
The feature allows the wallpaper to change every time you open the lock screen.
Factory Reset Samsung Galaxy Tab A6 10.1
Factory reset helps you to reset all settings of your tablet to factory defaults.
Set to vibrate on keyboard touch on Samsung Galaxy A7
Set to vibrate on keyboard touch on Samsung Galaxy A7
Samsung Galaxy J7 Pro battery percentage display
Samsung Galaxy J7 Pro battery percentage display makes it easy to keep an eye on your device's power consumption.
How to connect OTG on Samsung Galaxy Tab A6 10.1
You can use the OTG connection to connect to other external peripherals such as a mouse, keyboard or USB.
How to take screenshots on Samsung Galaxy Note 8
Screen capture on Samsung Galaxy Note 8 helps you capture images at the screen you are working on.
Update Android software on Samsung Galaxy Tab E 9.6 SM-T561
Software updates help the machine add new features or improve the machine's performance in the user experience.
What is Zalo Media Box? How to delete, block messages from Zalo Official Account
Zalo Media Box brings useful information to Zalo users, but sometimes it makes users feel uncomfortable. So what is Zalo Media Box? If I do not want to be disturbed, how to delete and block messages from Zalo Official Account? Let's find out!
Learn about Intel Core i7 10875H processor, what are the advantages and disadvantages?
A series of 10th generation Intel CPUs were released, with the Intel Core i7-10875H one of the most powerful upgrades in terms of performance. Let's learn about this processor together.
Check the number of printed pages printed and the number of remaining pages in the toner cartridge
Along with the modern life rhythm today, the use of modern printers is no longer a strange thing for everyone, especially office workers. So to check how many pages have printed and how many pages are left of the cartridge, let WebTech360 help you!
A beginners guide to using Apple Watch from A to Z
If you've just owned an Apple Watch and don't know how to use it, learn more through the article below. The article will guide you how to use Apple Watch from A to Z simply and easily.
6 ways to treat when Instagram does not show sticker, lose simple filter
Sticker (sticker) and filter (color filter) are specialties of the social network Instagram. However, sometimes you will run into the problem of losing stickers and filters on this app. So how to fix? Follow the article below to get the answer!
How to remove a wristwatch without tools is simple and easy to do
Removing the back of the watch to replace the Battery or inspect the watch's internal components at home saves you time and money than taking it to the store. Follow along for instructions on how to remove the back (back cover) of your watch without tools!
Learn about integrated graphics card Intel Iris Xe Graphics
Today, the equipment of integrated graphics cards on laptops is gradually gaining popularity because it saves space for people who move around with their laptops. So Intel released a new integrated graphics card Intel Iris Xe Graphics of Intel Gen 11 processor, let WebTech360 learn more about this card!
How to identify genuine Oakley glasses
Oakley is a famous brand of sports eyewear. With luxurious designs, high quality and reasonable prices, Oakley glasses are popular with many people, especially in the sports world. Therefore, counterfeit, imitation Oakley products appeared on the market. Today, I will show you how to recognize genuine, genuine Oakley glasses
What is GMT clock? Instructions on how to view GMT clock properly
The GMT watch is a device trusted by business people, pilots and adventurers. So what is GMT clock? How to see this kind of watch like? You follow the post to find out!
The formula for calculating the exact area of a rhombus, perimeter of a rhombus
The following article will introduce to you the formula to calculate the area of a rhombus, the perimeter of a rhombus most accurately. Stay tuned.
Instructions on how to use and maintain the most durable gold-plated watch
Owning a gold-plated watch is the dream of many fashion watchmakers. So if you already own a gold-plated watch, do you know how to use and preserve the most durable gold-plated watch?