What is the area of a circle with radius 60 feet?

Result: The area of a circle with radius 60 is 11310 | |
---|---|

Formulae: | |

r = 60 d = 120 C = 377 |
A = πr ^{
2
}= π(d2) ^{
2
}A = C ^{
2
}4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter |

Also, How do you measure a circle?

The formula is: **circumference = pi times the diameter**. For most projects, 3.14 can be used as the value for pi. Rewriting the equation, the circumference = 3.14 X diameter. For example, a circle with a diameter of 6 inches has an approximate circumference of 18.84 inches.

Hereof, What is the radius of a 30 ft circle?

Diameter of a Circle

Diameter | ft | m |
---|---|---|

30′0″ | 94.25 |
28.73 |

30′1″ | 94.51 | 28.81 |

30′2″ | 94.77 | 28.89 |

30′3″ | 95.03 | 28.97 |

Also to know How do you measure inches in a circle? You can calculate the circle’s circumference in inches with **pi in the equations circumference = 2 * radius * pi and circumference = diameter * pi**. Locate the circle’s center, and measure the length from its center to a point on its edge to find the radius. For an example, suppose the measurement is 5 inches.

What is the symbol for pi?

pi, in mathematics, the ratio of the circumference of a circle to its diameter. The symbol **π** was devised by British mathematician William Jones in 1706 to represent the ratio and was later popularized by Swiss mathematician Leonhard Euler.

**20 Related Questions Answers Found**

Table of Contents

**What tool makes a perfect circle?**

**A compass** is the traditional tool for drawing precise circles, and its sharp point acts as a pivot.

**How do you find the radius?**

How to Find the Radius of a Circle?

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

**How do you find the radius with the diameter?**

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. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.

**How do you find the radius when given the area?**

To find the radius, **divide the area by pi, then take the square root**.

**What is length formula?**

Formulas for Arc Length

Arc Length Formula (if θ is in degrees) |
s = 2 π r (θ/360°) |
---|---|

Arc Length Formula (if θ is in radians) | s = ϴ × r |

Arc Length Formula in Integral Form | s= int^{b}_asqrt{1+(frac{dy}{dx})^2}dx |

**How long is the diameter of the circle?**

The diameter is **the length of the line through the center that touches two points on the edge of the circle**.

**What is the formula for pi?**

The formula for the value of pi is the ratio of the circumference of a circle to its diameter. In the ratio form, it is **π = Circumference/Diameter.**

**Does iPhone have a pi symbol?**

**Add a Greek keyboard to** your iPhone to enable access to the letter Pi. Now that you’ve got the Greek keyboard available, simply switch to it by tapping the Globe icon down in the lower-left corner of your iOS keyboard and, when you cycle through to Greek, tap π! … Or, well, Happy π Day!

**Why pi is used in circle?**

The symbol π comes from the Greek letter π, because the Greek word for “periphery” begins with the Greek letter π. The periphery of a **circle was the precursor to the perimeter of a circle**, which today we call circumference.

**Which tool is used to draw a straight line?**

Answer:**Ruler** is used to draw straight line.

**What is the secret in drawing a perfect circle?**

The Secret to Drawing Great Circles. We **have to move all the way up to the shoulder to see the range of movement required to draw a circle**. The shoulder is a ball in socket joint. This type of connection allows for a broader range of movement.

**What do architects use to draw circles?**

**Compass**. **Compasses** are used for drawing circles or arc segments of circles. One form has two straight legs joined by a hinge; one leg has a sharp pivot point and the other has a holder for a technical pen or pencil.

**Is around the perimeter?**

Perimeter is **the distance around the edge of a shape**. Learn how to find the perimeter by adding up the side lengths of various shapes.

**What is the radius of a 22 inch circle?**

r = 22 / (2 * 3.1) = **3.55** That’s accurate enough. , where is the circumference and is the radius. So, the exact value of the radius of the circle is .

**What is the formula of radius and diameter?**

The formula for the radius can be written as r=d2, and the formula for diameter can be written as **d=2r**.

**Is a radius half the diameter?**

The radius of a circle is the length of the line segment from the center of a circle to a point on the circumference of the circle and diameter is a line segment from one end of the circle to the other end of the circle passing through the center of the circle. So, the radius is **half the length of the diameter**.

**What is the radius of the diameter is 24?**

If it is its diameter, then we must do a little calculation, multiplying the diameter by Pi to reach 75.40 inches. If it is its radius then we must multiply the previous result by 2 to reach 150.80 inches. If the diameter of the round pool is 24 ft, then its radius is **12 ft**.

**What is area formula?**

Given a rectangle with length l and width w, the formula for the area is: **A = lw (rectangle)**. That is, the area of the rectangle is the length multiplied by the width. As a special case, as l = w in the case of a square, the area of a square with side length s is given by the formula: A = s^{2} (square).

**What’s the square root of a circle?**

But assuming a circle is represented by the equation x^{2} + y^{2} = r^{2} , the square root is equivalent to **sqrt{r ^{2} } = r** .

**What is the radius of the given circle?**

Given the radius of a circle calculate the area, circumference and diameter. Putting A, C and d in terms of r the equations are: **A=πr2**. **C=2πr**.