Table of Contents

- 1 What is the relationship between the diameter the circumference and pi?
- 2 Which of the following formula give the relation between the circumference and the diameter of a circle?
- 3 How does diameter related to circumference?
- 4 What is the relationship between diameter and radius of circle?
- 5 How to find the circumference of a pie?
- 6 How is the number Pi related to the circumference?
- 7 What is the symbol for the circumference of a circle?

## What is the relationship between the diameter the circumference and pi?

Circles are all similar, and “the circumference divided by the diameter” produces the same value regardless of their radius. This value is the ratio of the circumference of a circle to its diameter and is called π (Pi).

## Which of the following formula give the relation between the circumference and the diameter of a circle?

Getting Diameter from Circumference Since we know circumference and diameter are related by π, we can use π to find diameter if we know circumference. We do a bit of mathematics to isolate diameter, d, on one side of the equation: C = πd. C/π = d.

**How are pi and radius related?**

Where C is the circumference, pi is pi, and r is the radius. The radius is equal to one half of the diameter of a circle and measures the distance from the center of the circle to the edge of the circle.

Meaning of Circumference To Diameter The circumference of a circle is related to its diameter. If you know the diameter d of a circle, then you can easily find the circumference C using the relation: C=πd C = π d . So, when the circumference C is placed in ratio with the diameter d , The answer we get is π .

### What is the relationship between diameter and radius of circle?

Radius = diameter÷2.

**How do you find the circumference of each circle?**

To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14).

## How to find the circumference of a pie?

Now all you need to solve for the circumference, C, is to multiply the diameter by pi. Doing this you get 3.14*10 = 31.4 inches. It takes you less than a minute to do all this, so you quickly answer the baker that he needs enough whipped cream to cover 31.4 inches to go all the way around the pie.

It relates the number pi to both the circumference and diameter. You can see that by dividing the circumference by the diameter, you will get the number pi.

**What is the ratio of the diameter to the circumference of a circle?**

The diameter is twice the radius or d = 2·r. π represents the number Pi which is defined as the ratio of the circumference of a circle to its diameter or π = C d . For simplicity, you can use Pi = 3.14 or Pi = 3.1415.

### What is the symbol for the circumference of a circle?

The symbol used by mathematicians to represent the ratio of a circle’s circumference to its diameter is the lowercase Greek letter π, sometimes spelled out as pi, and derived from the first letter of the Greek word perimetros, meaning circumference. In English, π is pronounced as “pie” (/ p aɪ / PY).