What is the area of the diameter is 16?

64π square units64π square units.

What is diameter of 16cm?

162=8 centimeters.

What is the diameter of a circle 16?

16π≈50.27 in.

How do you find the area of a 16cm circle?

Pre-Algebra Examples

1. The area of a circle is equal to Pi π times the radius r squared. π⋅(radius)2.
2. Substitute in the value of the radius r=16 into the formula for the area of a circle. Pi π is approximately equal to 3.14 . π⋅162.
3. Raise 16 to the power of 2 . π⋅256.
4. Move 256 to the left of π . 256π(cm)2.

How do you calculate the area given the diameter?

Answers. 1. The formula for the area A as a function of the diameter d of a circle is given by A = π (d/2)^2.

What shape has a perimeter of 16cm?

rectangle

A rectangle has a perimeter of 16 cm .

How do you convert length to diameter?

Multiply the radius by 2 to find the diameter. For example, if you have a radius of 47 inches, multiply 47 by 2 to get a diameter of 94 inches. Divide the radius by 0.5 to calculate the diameter. In this example, check your answer by dividing 47 by 0.5 to verify your answer of 94 inches.

How do you find the DIA of a circle?

If you want to find the diameter from the circumference of a circle, follow these steps:

1. Divide the circumference by π, or 3.14 for an estimation.
2. And that’s it; you have the circle’s diameter.

Is diameter the same as length?

The diameter is the same as the length or width of any circle. No further calculation is required.

Is radius half of diameter?

A radius is half the length of the diameter.

How can you find area?

Video quote: We're going to talk about how to find the area of a square or rectangle right the equation that you'll use is area equals length times width now for a square.

What does the diameter of a circle look like?

Video quote: And it is a chord that passes through the center of the circle. So it is a diameter notice we're saying a diameter of the circle. Because there are infinitely many diameters.

What is the radii in a circle?

Radius of a circle is the distance from the center of the circle to any point on it’s circumference. It is usually denoted by ‘R’ or ‘r’. This quantity has importance in almost all circle-related formulas. The area and circumference of a circle are also measured in terms of radius.

How do you write radii?

When the diameter is known, the formula is Radius = Diameter/ 2. When the circumference is known, the formula is Radius = Circumference/2π. When the area is known, the formula for the radius is Radius = ⎷(Area of the circle/π).

Is radii and radius the same?

The plural of radius can be either radii (from the Latin plural) or the conventional English plural radiuses. The typical abbreviation and mathematical variable name for radius is R or r.

Is pi a real numbers?

Pi is an irrational number, which means that it is a real number that cannot be expressed by a simple fraction. That’s because pi is what mathematicians call an “infinite decimal” — after the decimal point, the digits go on forever and ever.

Who invented zero?

About 773 AD the mathematician Mohammed ibn-Musa al-Khowarizmi was the first to work on equations that were equal to zero (now known as algebra), though he called it ‘sifr’. By the ninth century the zero was part of the Arabic numeral system in a similar shape to the present day oval we now use.

Is infinity a number or not?

Infinity is not a number, but if it were, it would be the largest number. Of course, such a largest number does not exist in a strict sense: if some number n n n were the largest number, then n + 1 n+1 n+1 would be even larger, leading to a contradiction. Hence infinity is a concept rather than a number.

Is infinity a real number?

Infinity is a “real” and useful concept. However, infinity is not a member of the mathematically defined set of “real numbers” and, therefore, it is not a number on the real number line.

Do numbers end?

The sequence of natural numbers never ends, and is infinite. OK, ¹/₃ is a finite number (it is not infinite). There’s no reason why the 3s should ever stop: they repeat infinitely. So, when we see a number like “0.999…” (i.e. a decimal number with an infinite series of 9s), there is no end to the number of 9s.

Is Google a number?

Google is the word that is more common to us now, and so it is sometimes mistakenly used as a noun to refer to the number 10¹⁰⁰. That number is a googol, so named by Milton Sirotta, the nephew of the American mathematician Edward Kasner, who was working with large numbers like 10¹⁰⁰.

Why is 1729 a magic number?

It is 1729. Discovered by mathemagician Srinivas Ramanujan, 1729 is said to be the magic number because it is the sole number which can be expressed as the sum of the cubes of two different sets of numbers. Ramanujan’s conclusions are summed up as under: 1) 10 3 + 9 3 = 1729 and 2) 12 3 + 1 3 = 1729.

Who wrote book on Ramanujan?

The Man Who Knew Infinity (book)

Who is the mother of math?

As one of the leading mathematicians of her time, she developed some theories of rings, fields, and algebras.

Who invented maths?

Archimedes is known as the Father of Mathematics. Mathematics is one of the ancient sciences developed in time immemorial.



Table of Contents.

Who invented LCM?

… algorithm, procedure for finding the greatest common divisor (GCD) of two numbers, described by the Greek mathematician Euclid in his Elements (c. 300 bc). The method is computationally efficient and, with minor modifications, is still used by computers.

Is India good at math?

MUMBAI: Here’s proof that Indians have a flair for mathematics. Indians scored higher than the global average in GMAT’s quantitative section that tests math skills in 2010. But Chinese students have the highest average in quantitative scores, and India is far behind, at seventh position.