Practice Problems on Circle Formulas

P1: Calculate the circumference of a circle having a radius of 10 cm.

P2: Calculate the area of a circle having a diameter of 14 metres.

P3: A circular garden has a radius of six metres. What is the length of an arc with a centre angle of 45?

P4: Determine the diameter of an 18-inch pizza. What is the length of a slice of pizza with a central angle of 60?

P5: Determine the diameter of a semi-circular arch 8 feet. Calculate the perimeter.

Circle Formulas For Diameter, Area and Circumference

Circle formulas are basic formulas used in geometry to solve various problems of circles and are used in solving various mathematical and other problems. Before moving with various circle formulas one must familiarise with the basic definition of a circle. “A circle is a basic geometrical shape in which all points on the circumference of the circle are equidistant from the centre of the circle.”

In this article, we will learn about various circle formulas their uses and others in detail.

Table of Content

  • Circle Formulas
  • Parts of a Circle
  • What are Circle Formulas?
  • Properties of Circle
  • List of All Circle Formulas
  • Examples on Circle Formulas

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Circle Formulas

In simple terms, a circle formula assists us in understanding and calculating the key features of circles. One such formula may be used to calculate the circumference, which is similar to the perimeter of a circle. Another formula may be used to calculate the area, which is similar to the space encompassed by a circle. These calculations use the radius and, in certain cases, the diameter of a circle. We may use these formulae to tackle circle-related issues, such as calculating the distance around a circular track or the area of a round garden. They are crucial tools for geometry and daily applications using circular forms....

Parts of a Circle

A circle is a simple yet fundamental form in geometry, made up of different components that define its structure and characteristics. Here are the essential elements of a circle:...

What are Circle Formulas?

Circle formulae are important tools in geometry for computing the characteristics of circles. Let’s look at some typical circle formulae and see how they might assist us locate various parameters....

Properties of Circle

Let’s look at some interesting qualities that distinguish circles from other geometric forms. This is a list of circular properties:...

List of All Circle Formulas

Here are list of all circle-related formulas:...

Examples on Circle Formulas

Example 1: Determine the area of a circle having a radius of 8 units....

Practice Problems on Circle Formulas

P1: Calculate the circumference of a circle having a radius of 10 cm....

FAQs on Circle Formulas

What exactly are circle formulae used for?...