What is Radius and example?

The definition of a radius is a circular limit or a boundary of a specific distance which is drawn from a specific point. An example of radius is a restaurant located within five miles of a house.

What is the example of radius of a circle?

radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.

What is the radius?

Definition of radius



1 : a line segment extending from the center of a circle or sphere to the circumference or bounding surface. 2a : the bone on the thumb side of the human forearm also : a corresponding part of vertebrates above fishes. b : the third and usually largest vein of an insect’s wing.

What is radius in geometry example?

A radius is a straight line from the center of a circle to the circumference of a circle. If you have two or more of them, they are referred to as radii. All radii in a circle will be the same length. If you put two radii together, edge to edge, going through the center of a circle, you would get a diameter.

What is radius and diameter example?

Take the circumference of a circle and divide it by Pi. For example, if the circumference is 12.56, you would divide 12.56 by 3.14159 to get 4, which is the diameter of the circle. Use the diameter to find the radius by dividing the diameter by 2. For example, if the diameter is 4, the radius would be 2.

What is radius in a circle?

Definition of radius



a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. the length of such a line. any radial or radiating part.

What is the radius of the diameter is 6?

We all know that the radius of a circle is half its diameter. Hence, the radius of the given circle is 3 cm.

What is the radius of 8cm?

= 50.29 (approx.)

What is the diameter of 7cm?

Answer. Here,diameter is 7 cm. So radius is 7/2=3.5 cm.

What is the radius of 9 cm?

The answer is 9.42 cm.

How do you find the radius?

Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter.

How do you find a circumference?

To calculate the circumference, you need the radius of the circle:

1. Multiply the radius by 2 to get the diameter.
2. Multiply the result by π, or 3.14 for an estimation.
3. That’s it; you found the circumference of the circle.

How do we name a circle?

Video quote: So a radius is the distance from the center to any point on the circle. We name a radius by using the two endpoints of the line segment. So for example let's start in the center.

What is the area of a pizza with a diameter of 12?

Pizza Comparison (old version)

What is the area of small pizza?

The diameter of the small pizza is 8 inches, so its radius is 4 inches. Area of large pizza = pi(r²) = pi(8²) = 64pi square inches. Area of small pizza = pi(r²) = pi(4²) = 16pi square inches.

How big is a 30cm pizza?

30cm large = 706.86cm.

What is standard pizza size?

Small pizzas average between 8 and 10 inches in diameter and will yield about six slices. Medium pizzas run 12 inches in diameter and will give you about eight slices. Large pizzas are 14 inches in diameter and will offer approximately 10 slices.

What size is family pizza?

A family-size pizza is typically 16 inches in diameter. It can feed up to 10 adults. You can feed your whole family with just one order, and if you are a small family, you will have leftovers for the next day. It’s perfect for any occasion.

Is pizza a diameter or radius?

Pizzas are sized according to the measurement of the diameter, so a pizza with a 10-inch diameter would be considered small; a 12-inch diameter would be a medium; a 14-inch diameter would be a large.

What is the most popular pizza size?

14 inches

The most popular size of pizza in the United States is 14 inches in diameter. The average pizza is usually 14 inches in diameter with eight slices. The average pizza is also normally supposed to feed a group of four (two slices per person).

Which country eats most pizza?

Italy. As well as inventing the original recipe of pizza, Italians can be proud to have made it into the top five countries that eat the most of it. Around 1.6 billion pizzas are eaten in Italy every year! Pizza wasn’t always a national treasure, though.

What is the most eaten pizza in the world?

Nowadays, beef pepperoni pizza is the most popular pizza variety, but there are also versions such as fish pepperoni pizza and port pepperoni pizza.

What is the most expensive pizza?

Louis XIII – $12,000



Costing a whopping $12,000, we have the Louis XIII. This is the most expensive pizza in the world! The creator behind this pizza is Renato Viola. The dough is made from the most refined flour, and it takes 72 hours to prepare.

What’s the most expensive food on earth?

Beluga caviar



Siberian sturgeon caviar is one of the most expensive foods on the planet, prized for its salty, earthy taste. Iranian Beluga caviar is officially the world’s most expensive – a kilo will set you back 20,000 pounds.

Who invented pizza?

That did start in Italy. Specifically, baker Raffaele Esposito from Naples is often given credit for making the first such pizza pie. Historians note, however, that street vendors in Naples sold flatbreads with toppings for many years before then.